In bios legacy mode, we can select the language at Grub menu of Ubuntu live, where Try ubuntu live is the default entry. But, in EFI mode, no way to select language, nor at Grub menu, nor at session login. With Ubuntu classic Gnome, in EFI mode, we can select language at session login. How to select language to try Ubuntu Mate in EFI mode?
Edit: add screenshots
Screenshot in bios legacy mode, we can select the language:
Screenshot in EFI mode, how to select the language?
Screenshot in EFI mode from Ubuntu classic, we can select the language in session: