I'm assuming it's the update issue you are suffering from, as are we all and that it's not a broken G Drive? If so, it should still work with Big Sur. If so, here's an idea... take the G drive to an Apple store. They have Macs running Big Sur as well as Monterey. Get them to plug your G Drive into one of their Big Sur devices and pull the contents off that onto another drive or onto your laptop. Now I'm hopeful that your local Apple store is accommodating as mine appeared to be. Granted I bought my G Drive from the Apple store but even if not, one of the Genius guys can look up the issue on their internal forum and see there is a known issue and help you out. Furthermore, if you bought it from the Apple store it comes with a guarantee so they have to be accommodating. I have said that if this isn't fixed, I'm bringing mine back for a refund as it's not fit for purpose. But I too have the issue that I have loads of stuff on the drive that will have to taken off prior to returning. I hope this helps.