Same. I know sync isn't foss but the features and how it's presented got me into the lemmyverse. I use it more than jerboa or infinity. Both great but the sync guy has a good smooth app. I support that.

I used RIF for many years until the Spezzening. Jerboa is pretty good, but felt just a little shy of something. Sync felt great as soon as I tried it.

Check out Affinity Photo. Doesn't do everything Photoshop does, but it's a hell of a lot cheaper and lighter.

Decent list though I actually prefer Jellyfin to Plex.

I don’t get Steam really. I guess it could be Open Source but the whole concept is essentially commercial by definition. It is an App Store for games.

Totally valid to add Windows if it is the only things that runs the other programs you need. Photoshop is one of the few mainstream apps that has no true competitor on Linux.

Fair, but I don't agree with the choices personally speaking.

Photoshop, sure. I've been in groups where you need it to open PSDs to collaborate.

Plex is up for debate. Jellyfin is not there yet, but it's already a viable alternative.

Steam is proprietary because it's a distribution platform for pay-to-play software, not sure why you'd want an open-source alternative.

Unraid, will never use it. Heck, can't see the need to use any NAS-specific operating systems over plain Linux. Yes, it takes a whole lot more to set it up, but it's just as worth as paying $130, or more if you live in a developing country.

Fences, just no. I've used them a long time before, sure they're really useful, but the best alternative is to just not depend on it. I'm faster at typing the name of the application or the folder I want to access, so I use KRunner. Sometimes the best organisation tool is to NOT use a particular organisation tool. If you really need one when dealing with large amounts of data, you can definitely use methods like Zettelkasten, think of extended attributes or metadata.