Re: Last time
"when did ANYONE last use a CDROM?"
A few weeks ago. Debian or Devuan CD-ROM, boot up minimal installation disk, do a network install.
I do believe OP meant, but didn't explicitly say (perhaps being lazy), CDROM drive, as opposed to a CD R/W drive. And when's the last time anyone used a CD-only drive as opposed to a DVD-R/W drive or even, these days, a BluRay R/W drive?
Tho admittedly, at home, I have't had a working CD/DVD/BluRay drive for a decade.