iPhone’s, and probably some other Android phones too don’t do that. Just look how bad quality most of the pictures on this thread are. If they were computer generated, they wouldn’t look that noisy. I know Samsung does that thing you’re talking about because there’s a setting.

There was an option under display settings but I guess it got removed with iOS 16/17+

This option would make the text react to lighter wallpaper so it would make the font dark.

UPDATE: After a full day and using it for my exercises I can confirm it won’t make it to 9 pm alive. When I would use to back in watchOS 9, it would last the whole day.

SE First Gen. it’s been better, not watchOS 9 levels but getting there! Finally.