All distros are equivalent, as far as software is concerned. They all have access to the same open source software, and Flatpak; AppImage; and Snap can be used for extra portability.

Think of a distro like a pre-configured image of linux. You can always change the configuration later, if you desire. For example, the Desktop Environment. All you have to do is just install a different DE package (usually via command line)

The DE has a major impact on user experience. Use KDE plasma for a more windows-familiar experience, or Gnome for a more Mac-familiar experience. Or experiment with others

The Linux Experiment is a good resource

XP was kind of a F up for MS, they gave us a really decent OS that raised our expectations. People ran that for almost 2 decades because no one wanted the new OS's MS was putting out like ME and Vista. Win 8 was out when XP support fully ended and many people chose to go with the older Win 7 because it was less intrusive and more like a PC OS instead of trying to become like a Apple/phone/tablet interface. XP>Win 7>Win 10>Win 11 imo and all the unmentioned weren't worth upgrading for, but I don't use my phone for the internet and I've been using a PC for over 40 years. We like what's familiar and we can use without having to think too much about the tool used to achieve what we're doing. I have Win 11 on a laptop and I have to jump through a lot more hoops to control my desktop, who can pull my info, what can install, what can run in the background. And every update I have to do it again because they add shit back in again along with new stuff I don't want or need. Win 10 professional at least minimized how often they'd add new stuff or change my existing settings. Win 11 Pro doesn't seem nearly as friendly.