In the interest of scientific experimentation, if nothing else, I would like to have seen a few radical enhancements to standard server and workstation chipsets, to allow a fresh OS install to a ramdisk hosted by Optane DIMMs.
Along these lines, one configuration that came to mind was those dated triple-channel motherboards: the third channel could be dedicated to such a persistent ramdisk, and the other 2 or 4 channels could be assigned to current quad-channel CPUs.
The BIOS could be enhanced to permit very fast STARTUPs and RESTARTS, and of course a "Format RAM" feature would support fresh OS installs to Optane DIMMs installed in a third channel.
By way of comparison, last year I migrated Windows 10 to a bootable Highpoint SSD7103 hosting a RAID-0 array of 4 x Samsung 970 EVO Plus M.2 NVMe SSDs.
I recall measuring >11,690 MB/sec. READs with CDM. I continue to be amazed at how quickly that Windows 10 workstation does routine maintenance tasks, like a virus check of every discrete file in the C: system partition.
p.s. Somewhere in my daily reading of PC-related news, I saw a Forum comment by an experienced User who did something similar -- by installing an OS in a VM. He reported the same extraordinary speed launching all tasks, no matter how large or small.