Hi,
(to my knowledge) my SD driver is missing since the update to Windows 11.
It is an build in SD card reader and I have two partitions on my laptop, Ubuntu and Wndows 11. The hardware is working just fine, as I can perfectly access it under my Ubuntu partition.
I cannot find the driver in the device manager, even when I display hidden item.
(I attached screen shots. It is in German, but should be understandable if you know "Geräte-Manager" = "device manager", "Laufwerk = Disk drives", "USB-controller = Universal Serial Bus controller", "Generisch = generic" and "USB-Verbundgerät" = "USB connect device")
All sources I could find tell me to check if it is a hardware problem (it is not, works under Ubuntu to this day, worked unter Win 10 before) and to look for it in the device manager to reinstall it (it is not in the device manager, to my knowledge).
My laptop is an XMG Core 15 with an AMD Ryzen 7 4800H processor, an NVIdia GeForce RTX 2060 Refresh (6 GB GDDR6) graphic card, two 16GB DDR4-3200 Corsair Vengeance RAM and 1TB M.2 Samsung 970 EVO Plus hard disk.
My Windows version is Windows 11 Home (Version 21H2 Build 22000.556).
I hope that is all the information you could possibly need. If you need anything else, let my know...

Best wishes and thank you in advance!