For games like Baldur's Gate 3 that means you can only have a handful of cloud save files, they are like from 10 to upwards 40 MBs each. And that's a game where a lot of people doing save/reloads for each fight, decision etc.

Also probably good time to mention Ludusavi, rclone based all in one save file backup system https://github.com/mtkennerly/ludusavi