This is one of the parts GOG are doing way worse than Steam. Even with a 1GB limit I still have to constantly remove save files from Pathfinder WotR to make it fit inside the cloud sync. 200MB is ridiculously small.
On Steam it's per-game configured by the devs, no? Crypt of the Necrodancer tells me it has nearly 100GB space left, while Deep Rock Galactic says it's capped at ~85MB.
When it's configured by the devs they can set limit appropriate to their game's save file. Pathfinder got massive save files (there's even mods to try to reduce the size) compared to most other games, especially linear ones. It seems like GOG is setting a global limit
Is it? Pathfinder seems more like the exception than the rule. I've got a big library on GoG and none of my games even reach a quarter of the 200 MB limit.
Should probably have been more clear that it's extremely small for pathfinder. And since GOG is setting a global limit and they are selling pathfinder on their storefront, their global limit is too small.
Save files have a ton of variance. They can be as small as a few KB or they can be full save states of an entire open world. Back in the mid 00s, I had save file folders that were larger than the install directory, like The Witcher and Prey (2006).
There's a foss launcher called Playnite that combines all your other launchers. it can run scripts before/after you launch the game. I just setup an rclone script to backup that games save directory
Steam is great! But so is competition, and GOG has been one of the best of them. A healthy mindset and a strong focus on their relationship to the customer puts pressure on steam to do more than the bare minimum to stay in the lead. We're lucky in the fact that they're both mostly good companies to their consumers.
They each have their own issues, and I do question the effectiveness of GOG's strategy here, but GOG doing well is also good for you as a steam user!