roberta VS BoilR

You should probably use Protonup-QT to install Roberta, it'll be like a selectable proton version in steam but instead it's using native scummVM. Not sure about cloud saves though unfortunately.

Roberta (Runs the native Linux verison of ScummVM)

But, I can see the logic in starting off as a compatibility layer for Windows designed applications and start out as a simplified product line and go from there, the full on steam machines was a barge in, but Proton and the Steam Deck is more of a foot in the door, not even that, because I think that proverb is still a metaphor of an unwelcome entrance, but I can't think of a welcoming analog. I think it needs to be a transitional thing and instead of game devs targeting windows, I think they should target an ABI abstraction The developers of Zork instead of reprogramming it for every CPU, they just reprogrammed it for an abstraction and ported the abstraction and that's why you can be eaten by a Grue in Call of Duty: Black Ops. Roberta is compatible with too many 80's and 90's games to mention and ScummVM has exceeded the scope of just adventure games. Said abstraction compatibility would also make x86 less relevant.

Have you tried Roberta?

The easiest way to do this is to use Boilr. It supports Lutris and will add your Lutris games to Steam as shortcut automatically (and also download game art from SteamGridDB if you give it an API number). Boilr is also on Flathub so installing it and using it is super super easy.

And the fantastic Boilr

Hi, there's this old thread, and here the link to the tool itself. Hope it works.

For most of them, use Boilr. Sometimes it doesn’t work, or the launcher isn’t supported, then you gotta look up “How to add X launcher games to steam”.

Or Boilr, to automate it.

Can try this https://github.com/boppreh/steamgrid or this one https://github.com/PhilipK/BoilR for art on non steam game needs ur steamgriddb id

You can use BoilR (https://github.com/PhilipK/BoilR) for that, it will scan all of the usual install locations for your games and let you add them to Steam as individual entries.

Update: You can use BoilR (https://github.com/PhilipK/BoilR) to scan for the games installed and add them as individual entries to Steam, thanks to u/RightSaidJames for the tip!

I unfortunately haven't used steam rom manager before. I'll take a look into it if I get some spare time today and update this comment with how to do it. I use an app called BoilR to add my non-steam games and download artwork for them. You can read about it on it's GitHub page. It may be a bit more technical but I like it better since it adds the emulators rather than the games. This so I don't have my steam library filled with duplicates of my games between yuzu stable and yuzu-ea, if that makes sense.