preaching the choir my dear, whenever I see "new big web project" all I see is people sending a few bits of text .. sure it's coated with useless 4k vids and high res banners, but the cruft of the protocol is still a little bit of text. And considering the average brain speed of the population, a fast minitel would suffice :cough:.. hell, the human / system impedance might even improve.
When not doing docker or microservices everything, there is hardly any need to keep buying hardware.
WebGL 2.0 is based on OpenGL ES 3.0, so for that kind of graphics, any GPU after 2011 will spend most of their cores sleeping.
For compiled languages, even C++ (if using binary dependencies via package manager), the workflow is fast enough.
I am the opinion, even something like an Amiga 3000 would be more than enough for what most people do with their computers. :)