I’m running EndeavourOS and Windows 11. Each OS is on a separate disk, but I have a data disk that is currently NTFS that mount in both OSes. NTFS causes problems for some things in Linux, and I’m worried it’ll bork the drive for windows eventually, so I’m keen to find an alternative. I’ve read about the WinBTRFS driver so wondering if that is a better way to go?
I don’t want to run a server with a share to access this data because it is way to slow for my needs.
Please use different disks for each OS, you’ll save a lot of time and trouble later. It can be done, sure, but you’re setting yourself for a world of trouble in the future.
Just a recent issue
https://www.guru3d.com/story/dualboot-linux-systems-affected-by-grub-sbat-policy-changes-due-to-windows-update/
OP is installing the OSes on separate disks. The common disk is for user data, not for the OS.