Beta drivers are pre-release versions, and while they may introduce new features, they can also have bugs. It's essential to be cautious when installing beta drivers, especially from unofficial sources. If possible, try to find beta drivers directly from the manufacturer's website or support forums. If you're having trouble finding a stable release, consider reaching out to TP-Link's customer support. They may be able to provide more information on the status of WPA3 support for your specific adapter or offer alternative solutions. The link you provided seems to lead to TP-Link's community forums. It's a good idea to check for user experiences with the beta drivers there. Users often share their feedback, and you can get a sense of how well the beta drivers are working for others.