Everything you expose is fine until somebody finds a zero day.

Everything these days is being built from a ton of publically maintained packages. All it takes is for one of those packages to fall into the wrong hands and get updated which happens all the time.

If you’re going to expose web yourself, use anubus and fail2ban

Put everything that doesn’t absolutely need to be public open behind a VPN.

Keep all of your software updated, constant vigilance.