GOG is good. I recommend it to anyone that doesn't want to mess around with clients and just wants to buy games that you don't have to worry about having to log on to the internet.
"Why meeeeeeeee . . .?!"

Why Steam?

Answer:

- because Steam has a vastly better selection of games, whereas GOG has a very tiny selection of games relative to Steam

- because GOG has very few top tier premium games relative to Steam, whereas Steam has almost every top tier premium game that ever comes out (barring EGS exclusives...but Steam gets almost all of those eventually too)

- because Steam has fully-functional multiplayer, whereas many/most GOG games either have multiplayer stripped out of them completely, or they have multiplayer that is extremely gimped because it has no Crossplay with Steam, and GOG-only multiplayer is a Ghost Town which isn't viable to play multiplayer games on

- because Steam games are always maintained and fully up to date, whereas GOG games are often abandoned and not updated, or the updates come very slowly, if ever

- because Steam games are fully-featured and have all the components of the game, whereas GOG versions are often missing many things (DLCs, soundtracks, Linux versions, Achievements, etc.).

- because Steam versions of mod-based games (i.e. Skyrim) are compatible with a vastly higher number of mods, whereas the GOG versions use a different version number, which completely destroys the GOG versions' ability to be compatible with legions of mods.

Steam, Ubisoft Connect, Rockstar Launcher, Battle.net, EA app, etc. are, sadly, unavoidable, but what I can get on GOG, Zoom, GamesPlanet, etc, I get on GOG or other DRM-Free stores.

Of course the larger my GOG library grows, the easier it becomes to ignore new releases on Steam, due to the ever-increasing backlog.

Sometimes the difference in version is completely superficial and all these "version checks" within mods should come with a "I don't care, load anyway" button. Version checkers often cause more problems than they solve. There should always be a way to accept consequences and proceed anyway.

Nothing is stopping you from ignoring the client of the deck and just running whatever. It is Arch, after all.

There is the third option of running DRM-Free Windows software on Linux in a compatibility layer. I'm not proselytising though.

They seem to have hit the sweet spot with the battery life to performance ratio. I kinda regret not getting one, but I guess it makes more sense to wait for the inevitable hardware revision now

My deck's collecting dust, I went back to GPD. Linux without a physical keyboard is just... madness.

I guess it could be like one of those things that people buy because it's cheap, and then sort of forget about it

Like my GP2X, which is basically a museum piece now.

Oh it's great as a console, especially if you live entirely within Steam, but as a GOG user who cares about achievements AND wants the handheld PC to act like a proper PC, the Deck's been giving me nothing but trouble.

If I was concerned about my budget, I'd get a ROG Ally, at least Windows has better touch support (On the desktop) and most apps run without tinkering. I can afford to by indie device though so I go for GPD, because they are keyboard-obsessed. And heck, this Obsession may just save them, because I think the ROG Ally has just made Aya Neo, OneX and AOK obsolete lol.

The ROG Ally might be too much performance for me...

Yeah you get to own what you buy. That being said in my experience gog games don't tend to work so well with Linux.

Just slam in a keyboard the size of the deck, you'll be fine.

Battles of Destiny, Hammer of the Gods, and Screamer 4x4 shouldn't be listed as only at GOG. There's another DRM-free store that has them.

what you are talking about here is not copyprotection... nor is Steam's DRM "super secure"...

Well, that may be one reason for some (Linux-)users to use and prefer Steam.

Luckily the work Valve does to support Linux gaming seems to indirectly benefit GOG games too, ie. that it is easier to run also GOG games on Linux.