Thank you for the screenshots, the MediaTek WiFi drivers are not installed correctly.
Below is the support page for your motherboard on the Asus website, from the Wireless section, download the installer for the WiFi drivers, then use that to reinstall the MediaTek WiFi drivers, if you currently have no Internet connection on your PC, you will need to download the driver installer on another device.
https://www.asus.com/motherboards-components/motherboards/prime/prime-b550m-a-wifi-ii/helpdesk_download?model2Name=PRIME-B550M-A-WIFI-II
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Standard Disclaimer: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.