What is W11?
Since you’re asking on the AppleTV sub, you can go into the AppleTV System Settings > Accessibility > Subtitles and Captioning > Style and you can change the font, font size, and font color.
Source: https://support.apple.com/guide/tvapp/activate-subtitles-and-captioning-atvb5ca42eb9/web
True, but I feel like back then an app with ads just had a banner at the bottom or something. Now “ads” means a full screen unskippable video every few minutes. No thanks.