Thank you everybody, I went with Heroic Launcher
I’d like to log into my GoG account and click on “install game” from within the game store without having to manually download the installer, manually install the game, and then add it to the game store to act as a launcher (like steam does). Seems to defeat the purpose of a game store.
Purchasing the game on the web is fine, it’s more the game management aspect I’m looking for. Does that exist?
I’ve recently found that Lutris’s install scripts haven’t been working, at least for the games I tried to install. Not to mention that it seems to take forever to download GOG games.
So I switched to Heroic and I haven’t looked back. It somehow downloads games faster than if I got the installer directly from the GOG website, and it has save synchronisation. Some games still require manual tweaks (I’ve had the most trouble with the classic Resident Evil trilogy), but a lot of them can be done through Heroic’s GUI.
When the install scripts are working, Lutris tends to be better than Heroic when it comes to manually installed community patches and the like - you’ll usually be given the choice between a script for the vanilla game and one for the patched version (In order to install KeeperFX through Heroic, I had to install it manually and then add it as a library option, for example.)