Outdated how? I use it for my daily driver and it works fine for me. It’s a fairly simple program and the 0.3.x river protocol is fairly stable so I would doubt it’s become outdated, but if it is, you should be able to patch it yourself given the simplicity of the program.





As others have said, no for the Linux partition; it’s the same arch, socket type, etc. CachyOS’s kernel probably contains everything you need.
For the Windows partition you might have problems though. Iirc Windows connects licences to motherboards, to prevent disk cloning to circumvent buying licences, so Windows may think you’ve cloned your drive to pirate Windows. I’ve never tried secure boot but I know W11 requires TPM too so if you’ve got secure boot you should look into how to switch to a new motherboard on Windows.