Re: Only useful
You can rent cloud based RPi's (RPi3, RPi4 4&8Gb) from Myhic Beasts (https://www.mythic-beasts.com/order/rpi/).
Myhic Beasts have been running netbooted pi's for years. Mythic Beasts and Raspberry Pi foundation work together on a lot of RPi projects, whilst also hosting the RPi web sites (on Raspberry Pi's). (https://www.mythic-beasts.com/blog/category/raspberry-pi/).