Hmmm. A Ukrainian girl used Michael Jackson's Thriller during her rhythmic gymnastics number. I don't think that's royalty free. And the US artistic swimming team used Smooth Criminal, also by Michael Jackson.
I want to have ads blocked with pihole and at the same time to have local DNS served by the router. I know pihole does local DNS, but RouterOS (mikrotik) is much better suited for that.
Even the server part for Bitwarden is open source and you can self-host it. Yes, Vaultwarden is a community alternative which is known to be lighter, but you have the choice from Bitwarden too.
I have an account with them for two years. My torrent client is online 100% at home, but I used to browse the site from my job and never got blocked or banned, or even notified that there's an issue. I suggest you ask in their forums.
You mean server? If so, the server is also open source (https://github.com/bitwarden/server), but the default instance (bitwarden.com) is not totaly free - you have to have a payed subscription for some of the features. If you self-host, then you have all the features (free and/or premium) - and this can also be done with Vaultwarden which is a FOSS alternative to the official server.
I do too.. I mean I use borg backup + rclone + B2 ... I was asking OP about personal stuff.