YSAK that getting new tires doesn't always line up with the PSI rated by the vehicle manufacturer and will have the rated PSI listed on the wall of the tire. You can also request the documentation on the tires purchased from the shop you got them from.
Edit: As rightfully pointed out in replies to this, yes the markings on the tire wall as typically the safety ratings for the tire itself and the correct PSI is a more complicated relationship between the vehicle, the size of the wheels/tires, and contact area of the tire for optimal traction and fuel economy. The vehicle placard will be a good value in most cases, except when the tire marks a max pressure lower than your vehicle's recommendation. Always consult with the shop if you have concerns.
It is discouraged but with a very strong non-reused primary password for your home instance, you’d be hard pressed to have problems with hackers even if they dump your database. It’s still a better idea to use a hardware key but that’s understandably annoying to carry/use.
One thing you could do is setup a second vaultwarden instance running on a separate machine ideally on a separate network and keep only TOTP connections on it, with its own backups and storage. But that is probably just as annoying.