How to check my BIOS version in Windows 10 via GUI?

Run msinfo32 and look for the "BIOS Version/Date" key:

2023-03-19--00-47-38

superuser.com/a/1319419

So my BIOS version seems to be the following one:

msi.com/Motherboard/X99A-SLI-PLUS/support#bios

2023-03-19--00-43-41

See also: How did I upgrade AMI BIOS from 1.C to 7885v1E?