ISP’s absolutely run multimode. That’s how you get fiber into a building or between buildings. Different types of fiber all play a role in a network deployment.

Broad statements are misleading. OM4 multimode won’t push 10gb at 500meters no matter how good your hardware is.

Your statement didn’t specify an application!

That’s not true… There are different types of fiber with different throughputs depending on the class of the cable and the length of the installation.

What distribution are you using? The common desktop environments (KDE & Gnome) have simple graphical display configurations similar to what you find in Windows.

Most desktop environments have an option for auto login under the user settings. That way you only need to decrypt the disk.

I have never seen an encryption implementation that required two passwords to decrypt the disk.

Is it possible the first one decrypted the disk and the second password was for your user account?

I got in a dependency loop one time. It was my own damn fault 😂