How to enable wifi in Ubuntu?

Question

WiFi

After updating the system, wifi stopped working - there is not a single network in the list.
After executing the command:
sudo systemctl status iwd
this error:

● iwd.service - Wireless service
Loaded: loaded (/etc/systemd/system/iwd.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Sun 2021-08-08 18:59: 42 EEST; 1min 57s ago
Process: 1605 ExecStart=/usr/libexec/iwd (code=exited, status=1/FAILURE)
Main PID: 1605 (code=exited, status=1/FAILURE)

ser 08 18:59:42 lwo1-lhp -a06068 systemd[1]: iwd.service: Scheduled restart job, restart counter is a>
ser 08 18:59:42 lwo1-lhp-a06068 systemd[1]: Stopped Wireless service.
ser 08 18:59:42 lwo1-lhp-a06068 systemd[1]: iwd.service: Start request repeated too quickly.
ser 08 18:59:42 lwo1-lhp-a06068 systemd[1]: iwd.service: Failed with result 'exit-

Answer 1

The problem was solved by installing iwd from a third-party repository: https://launchpad.net/~slyon/+archive/ubuntu/iwd+nm
Bug on launchpad: https://bugs.launchpad.net/ubuntu/+source/iwd/+bug ...

Answer 2

And what gives out
ls /etc/netplan
: