Fresh installation doubts

hey Im new with cPanel im evaluating cPanel on ubuntu VPS and i have some doubts: 1-I can't install on ubuntu 22.04. Is cPanel supported on this version? 2-I was managed to installed on 20.04 version but it seems that Cpanel is only acessible by the Public IP..this is the normal behavior? ...how can acess cPanel from the local IP\inside network? 3-I was not able to login to the cPanel....what is the default password? i tried the ubuntu root local account but did not worked for me and i cant see how to login on cPanel.