I recommend Debain, or else Linux Mint which is a derivative of (and fully compatible with Debian Linux) but has more recent software packages available to it.
Both Tailscale and Jellyfin have instructions on how to install onto Debian which are not too difficult to follow.
If you intend to use this computer as a server, Debian is probably better, it is lighter-weight and slightly more stable. If you intend to also use this computer as a daily driver, you might try Linux Mint instead, since it includes more of Ubuntu’s more recent software builds in their app store (i.e. package repository), and it is helpful to have more recent builds of the most popular apps. I have heard it is also a bit easier to install games onto Linux Mint than Debian.
I have a blog post about how to pick a Linux written for people switching from Windows or Mac, if you are interested in a more detailed explanation.
This may not even be Maoist moderators. A comment like that is little too obviously horrible. What I think happened is that fascists have appropriated a political sub-Reddit in order to smear that political movement. Something similar happened to the “/r/Feminism” sub-Reddit. I suspect Reddit’s CEO Jack Dorsey, who is a racist and fascist, deliberately hands control of any sub-Reddit he hates over to provocateur moderators.
Or maybe this just always ends up happening to leftist sub-Reddits for some other reason.