This depends on the game. The DRM is opt-in. A lot of the games that are available on GOG are also DRM free on Steam. For other games, they may have DRM, but its usually because the publisher isn’t willing to sell without, meaning its not on GOG anyway.
Ubisoft has proven itself to remove games from the market and become unplayable. You also legally agree in the Steam User Agreement that all games in Steam don’t belong to you. This isn’t a legal copyrighted material but the concept of ownership of the game at all in Steam is legally prohibited to own.
This depends on the game. The DRM is opt-in. A lot of the games that are available on GOG are also DRM free on Steam. For other games, they may have DRM, but its usually because the publisher isn’t willing to sell without, meaning its not on GOG anyway.
Ubisoft has proven itself to remove games from the market and become unplayable. You also legally agree in the Steam User Agreement that all games in Steam don’t belong to you. This isn’t a legal copyrighted material but the concept of ownership of the game at all in Steam is legally prohibited to own.
That sounds like a reason to stop buying Ubisoft games, not switch from Steam.
Pretty sure that’s in almost every game EULA ever. May be a 1-up for Itch but I’m pretty sure almost all games on GOG have similar terms.