Bitwarden is absolutely solid,yes.

Local server wise: If OP uses it in a local only setup behind a proper VPN implementation from my point of view the risk is acceptable. It’s not that hard to secure a home server in a way that Vaultwarden is not at risk - and when you’re so compromised that it is, then the attacker can easily use other vectors to gain the same data (RAt,keyloggers, etc.)