> Memory is cheap

If you're running on commodity hardware, sure; if you happen to be a $1T company that solders 3x marked-up RAM then that's definitely not true https://www.apple.com/shop/buy-mac/macbook-pro/16-inch-space... is the entry model, and clicking the 48GB option dials the price up to $3k

The cheapest Apple laptops start with 16GB now. That's enough for quite a few desktop apps regardless of Electron.