The experience was so slow, that you can play another game while loading [1]. Namco even patented "playing games during load” by 1987 [2].
As an example, I have fond memories of my C64 tape loading Hunchback [3] ... while watching "V". A single tape can take one hour if it fails in the middle and you need retries. All those waiting times were order of magnitude of what a common toddler will expect today. We were so relieved when the fast loaders appears [4] or when a 1541 arrived home [5]. And then we were so frustrated when the 1541 was only 300bytes/s instead of the 300bits/s of the Datasette.
The scenario in Xenix or PC-DOS loading from 8" floppies was similar.
I'm not arguing that now are better times, I’m arguing that in the 80s we have the best for the time, and those were good times to remember.
[1] Mini Games: https://en.wikipedia.org/wiki/Invade-a-Load
[2] Nanco patent: https://patents.google.com/patent/US5718632A/en
[3] https://en.wikipedia.org/wiki/Hunchback_(video_game)
[4] https://en.wikipedia.org/wiki/Fast_loader
[5] https://en.wikipedia.org/wiki/Commodore_1541
(edited link formats)