The EULA that accompanies delisted Ubisoft games requires players to destroy their purchases. Stop Killing Games is fighting to keep titles working after companies abandon them. A major representative for EU publishers opposes solutions like support for third-party servers.
It seems like the relevant section in the Ubisoft EULA says
I read this wording of this to be stricter than the BG3 example you shared, because the BG3 one seems to be saying “if you don’t agree to this EULA (or if you agree, but later terminate that agreement), then you must uninstall the game”. Whereas the Ubisoft one seems to include Ubisoft terminating the agreement, rather than just the user. That’s just my interpretation of these snippets though, as someone who is not a lawyer. It’s possible that the BG3 EULA also includes other parts that would mean similar to what people are unhappy about on the Ubisoft EULA
afaik both are unenforceable since you can only read them after paying for the product.