A similar problem with a Brother wireless connected MFC.
The Brother package installs without problems but after the installation, manually checking 'Brother Utility installation diagnostics' shows the scanner driver failed to install. However Win11 Device Manager shows the driver as installed.
Trying to scan with Brother Control Centre 4 (their scanner application) results in scanner not found. But 'Microsoft scan and fax' and 'NitroPro PDF' both can use the scanner, the former only for photos and the latter only for pdfs. Clumsy but necessary for now.
Tried all the expected solutions from updating everything (more than once), disabling AV and similar, uninstalling and reinstalling with multiple boots in between steps, clean SFC and DISM runs, to 'updating Windows in place' with no change to the aberrant behaviour. There are 2 other Windows11 PCs available in house, one being a near clone of the problem PC, and Control Centre 4 works properly on both.
I cannot be sure but it seemed to become a problem after one of the Oct Win11 updates. The other 2 PC have the same update sets, so something unique in the one.