As usual the industry safes money and the customer has to pay for the memory. I’m sick of applications which doesn’t adapt to HiDPI (automatically) and consume 500 MB of memory whereas a C/C++, Rust or even Python with Gtk or Qt will consume about 50 MB.
Aside from that Postman has become unusable because the company behind it want to earn „now“ money. I don’t say HTTPies UI is bad it just not what users want.
[1] http://josephg.com/blog/electron-is-flash-for-the-desktop/