Can you give me a good reason why ubuntu bad as host for whonix?
Because they have a history of spying on users. You cannot have privacy if the host is against you.
internet dont work
Requests to install the incomprehensible firmware
The reason your network card may not be working is it needs non-free firmware. Use these images instead to install. Always verify signatures to make sure your downloads are safe.
sudo dont work
you’ll have to install that yourself. # log in as root then apt-get install sudo