I performed a fresh installation of Ubuntu 20.04.3 LTS on my Lenovo V570c and there is no Wi-Fi adapter right from the start.
The terminal shows:
I checked the BIOS and Wi-Fi is enabled. Ubuntu 20.04.3 is the only operating system on this PC. If this information is not enough, please ask for more.
rfkill list
terminal command. Please don't post screenshots of text. – Pilot6 Dec 12 '21 at 13:39{}
formatting tool. – waltinator Dec 12 '21 at 19:09