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Steam announces game recording beta.
(store.steampowered.com)
This is a most excellent place for technology news and articles.
Cloud sync also requires the drm, but the advantage that gog and itch have over steam is that for most games you just get the executables and you're good to go.
Tbf to cloud sync, nothing is stopping you from using your own backup/restore service with your drm-free titles compared to the other features that Galaxy offers.
You can also use a third party launcher. I use Lutris on Linux. The GOG Integration is excellent.