My username mentioned twice in who command

I noticed by chance today that I had 2 users running on my Linux system. I do not know much about Linux users but I ended up running the “w” command that gave the following output when Firefox is running:

USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHAT
main     seat0    login-           17:22    0.00s  0.00s  0.00s /usr/libexec/gdm-wayland-session --register-session gnome-session
main     tty2     tty2             17:22    8:01   2:50   0.21s /usr/lib64/firefox/firefox -contentproc -childID 28 -isForBrowser -prefsLen 30120 -prefMapSiz

I would like to ask the following: - Is it ok to have my username being mentioned twice? IE this is not a hack into my system or anything? - I assume “/gdm-wayland-session --register-session gnome-session” represents me logged into Rocky and this is normal - is this correct? - I dont understand why there would be a second instance of my username associated with “/usr/lib64/firefox/firefox” - I would assume there would be a single user “main” that is running firefox, not firefox running as second instance of my user name. Is this ok / normal? Is there anything to be concerned about here? Thanks ahead of time…