FlatOut 1 & 2 were updated on steam. Those updates will come here too?

FlatOut Changelog

Improved controller support.
Added native support for Xbox, PlayStation, and Nintendo controllers.
Fixed analog controls.
Fully rebindable controller buttons.
Added widescreen loading screen.
Fixed workshop mods not applying on Linux/Steam Deck.
Fixed crashes on Windows 11.

FlatOut 2 Changelog

Improved controller support.
Added native support for Xbox, PlayStation, and Nintendo controllers.
Fixed analog controls.
Fully rebindable controller buttons.
Improved widescreen support.
Improved FOV implementation. The FOV can now be configured by editing zoom_fo2.cfg.
Fixed all menus, in-game UI, and graphics for 16:9, 16:10, and 21:9.
Fixed extreme camera zoom out when boosting.
Fixed workshop mods not applying on Linux/Steam Deck.
Fixed crashes on Windows 11.

Probably not since the other drm-free store is responsible for those updates and don't like gog. I suggest sending an email to Strategy first and ask them about it.