Sounds like a good way to make use of old eMachines, at a large discount too.
Finally, the year of the Linux Desktop! (eMachine edition)
After reading that, I just checked my memory. After an hour and a half using FF and and a videoplayer (on a reasonably up-to-date Ubuntu 20.x-based XFCE system), I'm using 2.2GB (out of 16, fairly typical, with no swap). So I'm pretty sure that - depending as always on what software they've chosen - 2GB is far from 'useless'. As always, depends on the use case. That's plenty if you spend most days in a text editor coding.