MusicBee for music management. Especially since I ditched Spotify and came back to local music. See, there are two things that I want from a music manager software: good playlists management and the ability to transfer such playlists to a phone or portable music player. Sadly, none of the Linux apps come close to MusicBee (and I think that I've tried almost all of them).

Some, like Strawberry, have decent playlist capabilities, but fail when I try to send my music to my phone: either it doesn't detect it (I'm talking about using the USB cable and MTP) or throws an error when transferring the files. And there are certain bugs that haven't been solved. Others, like Pragha or Gapless, cannot transfer music. Lollypop is the most acceptable one, but its playlist UX is awful, and is slow AF when syncing with my phone. So, for me, MusicBee is the only software that I truly miss from Windows.

And no, I don't want to just copy the music using the file explorer. As I've said, I rely heavily on playlists, and this method doesn't work fine for that. For the same reason I don't use Syncthing.

Foobar2000. Haven't found anything similar in terms of ui customization options, easy convert and ReplayGain operations built in.

The lack of a good cad software (fusion 360), and no, freecad and openscad are not worthy equivalents.

AutoHotKey

Effort free gaming on Windows

I'll acknowledge that gaming is much better than when I entered the field 20 years ago,

but it was so nice being able to just install a game and have it function instead of install a game and play the 50/50 gamble of whether or not it's going to have some bug that forces me to go online and search the issue.

Proton DB has been a lifesaver for most issues that have occurred, but there are still so many games that have obscure problems that while not all of them prevent you from playing at all, a good portion of them have issues with them that dampen the gaming experience.

And as a bonus one, the lack of a decent Android emulator. I have tried so many different emulators for Android, and all of them work notoriously worse than BlueStacks did on Windows and a lot of times take up double the space it did. As a person who plays a lot of mobile games that require constant looking at, it was so much easier to just have it running in BlueStacks on the third monitor and then just look at it when needed

The 20fps drop I have when I play THE game I have that could use it... For like 3 weeks, every 3-4 months...

Not a big deal really.

I miss all the crashes, the blue screen of death, the automatic updates that reconfigure all the personal changes you made to try make Windows work better, and all the hunting around for cracked proprietary software.

Eartrumpet.

roblox (i miss it only a bit)

Well I installed linux the day i bought my first laptop. I just started windows, got bored after sometime, then install fedora KDE because i can't withstand windows issues

From macOS: that the basics in UI are so much more consistent and just work. For example shortcuts across apps. This makes me insanely productive.

The only time I've used windows was in school computer labs where they taught us how to use paint in windows xp and few other dumb shit.

So I don't know what I'm missing but looks like nothing important

iTunes is probably the biggest, people with iDevices have a harder time with GNU/Linux

Wait Linux doesn't have this??!! Why the fuck not?