Yup, fond memories of my Amiga 500+ (full meg, woo!)

Or the Atari ST! I have one at home with 1 MB of RAM in it and it still flies. Boots up in less than a few seconds, which is faster than any of my modern PCs.

Of chip RAM, too!

And for many scenarios people use their computers for, it would still be enough today.

I used to run Acorn's RISC OS in just 2MB of RAM.

I ran it in 1MB. :-)

And it was fast and responsive, too.

Soon afterwards I bought a Psion 3 which ran a multitasking GUI OS on an 8086 in 256 kB of RAM.

That space was shared with file storage in a RAMdisc.

https://phonedb.net/index.php?m=device&id=826&c=psion_series...

It was perfectly viable to have multiple apps open and flip between them. It ran for weeks on a pair of AA batteries.