Link for the Partition Wizard: https://www.partitionwizard.com
This Video serves as a fix for anyone with an Sd card that will not format on Steam Deck
Make sure you are buying HalfDecent SD cards as well, as off brand ones can either corrupt your data or even not work at all.
Links for some good SD Cards (Not Affiliated): https://www.amazon.com/gp/product/B0B...
https://www.amazon.com/SAMSUNGAdapte...
https://www.amazon.com/gp/slredirect/...