Are there any large tech companies which shouldn't be broken up for being monopolies?

Google: Dominance in search, video etc allowing further dominance in ads and browser

Apple: "the ecosystem" is literally just monopoly tactics - for example see tile after their idea was incorporated into the ecosystem

Microsoft: Enough said

As much as I hate Nazis we should really tolerate them for this scenario I just made up

Haha that would be Microsoft just shifting money from one pocket to the other. GitHub, Azure and (effectively) OpenAI are all Microsoft

Jellyfin app (at least for Android) can play in external video players.

Shouldn't need one if you trust your seedbox provider to not log. And even if you don't trust them you'd need to find a VPN to trust more and they're almost all super sketchy.