Thanks for confirming. This isn't the case on Maximus XI Extreme Z390 and since there are both ROG asus boards you'd think there be consistency. Ever since I upgraded my X299 bios I cannot get the NVME drive to be drive 0/0 but now it's 1/0. So in other words Windows sees my sata drives first and then NVME second. It's still drive C: but Windows orders them in numerical order first, then letter order in task manager and the intel ssd toolbox sees it the same way. The NVME still boots but this was never liked this before with the older bios'. 3201 didn't change anything but it listed a ssd device fix. My Z390 does not behave like my X299.

The solution is to replace the Sata drives with more nvme's. I have no Sata drives in mine.
Different chipsets, different rules.

The board tops out at two and then you'll need an addon card for more nvme's. The sata drives are ssd's and not hdd's but that is an interesting solution. Would addon card nvme's be treated as secondary? Is the asus m.2 hyper card the solution? No plans to ditch the ssd's as there still good.

All of my boot drives (3 Win, 1 Linux) are on the Hyper V2. The 4 on the Apex M.2's are gaming/data drives. I don't keep games on the boot drives.
I also renamed the Recycle Bin to indicate which drive and Win Version I'm on, 970 1909, 980 1903, 960 20H2.
All of the drives are named for their intended allocations also in Disk Management, 970 C, 980 C, 960 C, D, E, F, N. 13TB on the mother board...