Bitwarden + Vaultwarden server. Or KeepassXC.

I don't recommend using the browsers password manager.

AFAIK the user account created by default on windows will be a full privilege account, so won't need a password to gain admin through UAC. Essentially the same as Linux where you can gain root privileges through sudo by using your own password.

But if you create an account with standard user privileges it will ask your for the password to an administrator account to gain admin. I'm not sure what the linux equivalent of this would be, denying sudo access would be too restrictive so maybe there's an in between where you need the password to an admin user to gain sudo.

Pretty normal tbh, a lot of those thumb drives get very hot. Probably not great for its lifespan though.

Best bet is install an SSD if you have a spot for an M.2 or 2.5" drive inside.

No, 2FA stops someone from getting into your account if they have the password.

I find it really hard to read for getting the information I need quickly, too much going on with too much useless info.

App and program are interchangeable terms, it doesn't matter.

"Usually"

And stuff like this is why Linux communities get a bad rep lol. No one cares that the the term all only came along with the iPhone, it's a common term now so get used to it.

I just use their servers, it's encrypted anyways and my bookmarks are all public websites, so other than some data on what I like to bookmark there's not much there.

Does it maybe mean 40% cacao content chocolate?

With vaultwarden it's very easy, just change the port map in the docker compose file on the host side. No idea how to do it with the official server stack.

It can be done if you implement a reverse proxy in front of the services.