Linux

When it comes to 2D CAD/CAM, then QCad is the best. They have a GPL version, but their commercial version has a lot more features, like importing/exporting most Autocad files, and CAM functionality. For just $40 bucks, it's worth every penny. The only disadvantage it has is that it can't ever have an ARM version, because the plugin they use for Autocad files is licensed, and it only exists for x86 afaik.

Never using proprietary software again. Maybe the only who can one be used be me and other foss' person could be steam..

gitkraken has a lot of features that I never use. But showing the various branches and their connections as a color-coded tree is worth paying money for.

Maya, the 3d software.

Reaper DAW, for (attempting) making music

Steam

vibeogames

Dungeondraft, Wonderdraft, FoundryVTT. Battle map making, world map making, and virtual table top respectively

I would never willingly use proprietary software. I don't mind paying if I also have access to source code that is licensed foss.

Half-life: Alyx, Baldur's Gate 3, Elden Ring, ... you get the idea. It's not so much those apps per se, and I'd prefer them to be FLOSS too, rather it's the amazing content and in such rare cases, I'm happy to financially support the creators.

WinRAR -s, honestly I haven't paid for anything since I switched to Linux because everything is open source or freemium not that I paid for anything when I use windows anyway I quacked almost everything but I did bought Terraria and Half Life series

I paid for Vuescan. There are a ton of Linux scanning apps, but pretty much all of them require editing all pictures to some extent after the scan. Vuescan applies a useful set of defaults that work for most pictures, speeding up the work flow. I had over 4,000 pictures to scan so anything to simplify that was worth it.

Pycharm professional and Steam are pretty dope

Does Unraid count as paid Linux itself, not just a Linux utility?

I like Insync. It synchronizes with Google Drive, OneDrive, and Dropbox. It is not the only client out there but it works better than the other ones I’ve used.

Some rare games that don't scam you.

Reaper. Great usability and decent Linux support out of the box (looking at you, davinci resolve). Generous free trial and a cheap one-time payment for a license. LMMS has served me well and is fine for basic stuff, but reaper is a whole other level, both in features and usability. I've heard good things about ardour too but have yet to give it a try.

SAP S/4HANA

If expensive and proprietary is what you want, it's hard to beat.

Pianoteq for virtual piano emulation with MIDI keyboards.

Does it count as paid if I donated what I think is a reasonable price?
Cause then it's KDE, Firefox, Thunderbird, LibreOffice and Gimp. I'd prefer those programs even if their proprietary counterparts were free.

I like Sublime Text and Sublime Merge and use both daily.