For me, I just enjoy selfhosting things that I can. In addition to vault warden, I have about 30 other services. Some rarely used, but I've learned so much about creating, maintaining, updating, and hardening servers; how containers work, vms, networking, etc.

If selfhosting isn't enjoyable for you or you don't have time for the upkeep, or if you're satisfied with bitwarden in the cloud, stick with it. They have a great service and it does seem to be a bit safer than some of the other services. Personally, I like the work that ProtonVPN is doing. They have a password manager that is still in the early stages but has a lot of promise.