A pragmatic solution that requires users to have 43GB of RAM? Right.
Fortunately, I've had a fancy Silicon Valley job for 15+ years which now lets me afford many GBs of RAM if I wanted to but it was a different story in my 20s. I relied on free or almost free hardware to learn. And that free hardware usually lagged in specs.
I would not recommend running out and buying a new current gen Ryzen board+cpu or core i7-whatever and 128GB of new ram at ddr4-4200 prices.
You're not wrong, but who's talking about 20 applications?
If this is such a good idea, let's just all use iscsi and mount the internet.
There are many things that can't be done on a phone that are possible on a PC. The reverse case is much harder.