Virtual Machine Manager is a great GUI frontend for KVM/libvirt and QEMU, and basically the gold standard for VM management on Linux
Cool thing is it also supports management through ssh, so you can use it as a server orchestrator if your needs don't require something more involved like proxmox
Virt-manager
I'm going to be greybeard: you should totally use kvm/qemu, and virt-manager is great for that.
Buuuuuuut, you should also absolutely learn how to use virsh to at least manage (start/stop/delete/deploy) them, because that tooling is guaranteed to exist basically anywhere and fancy gui stuff might not, or your system might be broken in a way preventing you from running a gui app, or whatever.
I promise, the hardest thing in virsh is setting up a bridged network if you need that and the rest of it is waaay simpler than dealing with a gui for deployment.
You don't need virsh at all. Virtual manager will work just fine.
You dont need a computer either
Yes you do
You need a computer with at least a few cores and some ram. Ideally it should support virtual acceleration
Nope throw it in the lake
Not advisable as most machines aren't rated for that environment. Also even it is it will be a pain to fine especially if there is mud.
Gnome Boxes has worked pretty well for me.
It hides to many options. I just want to create a VM with only 4 cores
You can change the core count AFTER making the VM which I agree is really annoying.
Besides that everything else has worked more reliably than others options I've tried.
For desktop: virt-manager, server: cockpit with the vm plugin.
Also Proxmox
Gotta try cockpit with the VM! It pulls in a tooon of dependencies, but may be worth it.
I've not used it much but I'm pretty sure GNOME Boxes can be used as a UI for QEMU, KVM, and libvirt .
Proxmox, the free version does everything you want, VM's and containers.
Not really a desktop option like VirtualBox though.
Its Debian so you can just install any desktop you want
Also virtual box is pointless garbage especially if you're using Linux
Alongside many others, I agree that using QEMU through GUI frontends like virt-manager or GNOME Boxes, or even server-focused solutions like Cockpit+VM plugin or Proxmox layered on top of your installation.
I just want to note a decent point against other solutions like VirtualBox or the VMWare products that work on Linux: these solutions that don't rely on QEMU almost certainly need the user to install out-of-tree kernel modules (that in some cases may also be proprietary). QEMU and its frontends don't need out-of-tree modules in a majority of distros and can work out of the box with all features (given BIOS configuration of the host and hardware supports them).
If you use GNOME, try Boxes.
VMware Player is the best by far in terms of GUI and ease of use. With that said:
Virt-manager is pretty decent and it will not break on a stable distro but:
Personally, I'd try using virt-manager because it will work "forever." If you can't get something to work and feel overwhelmed, go to VMware for now but long term you'll likely have to get used to virt-manager.
I would avoid VMware with a ten foot pole. Also I personally think virtual manager is easier to use.
It objectively takes fewer mouse clicks and keyboard keystrokes to install a Windows VM with drivers and full integration (3D, shared folders, etc.) on VMware Player than virt-manager. I could count them for you but I have better things to do. Setting up an equivalent VM with virt-manager is significantly more work. Just a trivial example - getting the VirtIO drivers. On virt-manager you have to search the web, find multiple sources, figure out which to use, figure out which version to download, download it. On VMware, you click the top menu, then Install VM tools, the end. With that said I'm not complaining, because I don't have the time to write the patches needed for virt-manager to work the same, but the difference is there.
There is only one source of the drivers and it is the Fedora Project.
Are you sure? Cause KVM's doc lists two: https://www.linux-kvm.org/page/WindowsGuestDrivers/Download_Drivers and the first one ain't Fedora. The language used doesn't suggest that one is a canonical source either. Now imagine that I'm a noob or otherwise using KVM for the first time. I have to figure out what the difference is and which one to get because I don't want to make a mistake and end up with a broken install. Mind you I have ended up with bad graphics depending on which driver and what version I've installed.
Stop suggesting people use vmware
Virtual manager and maybe gnome boxes. I don't like gnome boxes as it hides a lot of settings but has poor defaults.
I tried virt-manager, but I still prefer Virtualbox myself
Why
Literally just an opinion and people are down voting you for it
I use virt-manager. Works better than virtualbox did at the time (back while v6.1 was still the main release branch), it's easier, and it doesn't involve hitching yourself to Oracle.
VMWare may be "free," but it ain't free. And if you don't care about software freedom, why choose Linux over Windows or MacOS? Also, Workstation Player lacks a lot of functionality that makes it not good as a hypervisor. Only one VM can be powered at a time, and all the configuration is severely limited. Plus the documentation is mediocre compared to the official virt-manager docs.
I'm a Virt Manager guy, personally. The only thing is 3D acceleration is usually hard if not impossible in some cases without GPU passthrough. (Unless I'm wrong. I'd like to be wrong.)
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