In regards to the F5, have any users detected any level of Moire?

Not seen any yet. But it's a bayer sensor, so you can expect there to a small amount in some specific situations. It won't be 100% moire free unless the OLPF is way below 4K. The OLPF on the F5 and F55 is removable and I believe there will be a replacement OLPF option for demanding 2K applications.

Thank you.