@_elena @yunohost thanks bookmarked !
Another interesting point to explore with VPS is their T.O.S. Despite self-hosting we don't own fully the data and its existence rely on the will of the VPS provider. If the provider decide you break their T.O.S it's game-over again.
For example V.PS, netcup and Hetzner forbide storing pornographic content which may be seen as a red-flag (also see https://tenforward.blog/hetzner-considered-hostile-a-psa/).