Quite a lot. Those DMCAed titles from Kakao are all from them (originally published on their platform in Korea) so yeah they’re quite big. And they do all sorts of other biz like KakaoTalk (de facto messaging service in Korea) and even a fucking bank.
They did explicitly said that it’s completely unsupported scenario. It’s only for multiarch usage so even kernel isn’t provided.
Users running i386 systems should not upgrade to trixie.
From https://www.debian.org/releases/trixie/release-notes/issues.en.html#reduced-support-for-i386
Your “reverse situation” is exactly what happened to Kakao. Started as small messenger, expanding into other businesses as such.