6 x 4k Displays using a 2021 Mac Pro with 6800x?

I'm intending to install 6 x 4k monitors to a Mac Pro with a 6800x MPX Module.

Procedure is outlined here:

https://support.apple.com/en-bh/HT212547

However, I'm wondering about wiring and what inputs on the monitors I might need.

Do I need Thunderbolt 3 ports on the monitors? I'd prefer not since monitors with Thunderbolt 3 ports seem to be twice as much as those with DisplayPort.

Can I use 6 Thunderbolt 3 to DisplayPort Adapters?

If so, can anybody recommend one that would work?

Recommendations for Adapters or Compatible 4k monitors, or anybody else have a working setup for this they can recommend?

Finally, I will probably want to dual boot this with Bootcamp, so any additional considerations for using 3 of those monitors from the Windows 10 side? Tomshardware suggests EyeFinity would require using the DisplayPort inputs.