You could make a chromium fork with the server-required measures disabled but so far nobody has succeeded in finding a business model to fund that long term.
There's no server required measures. There's even a flag that lets you treat a specific IP as a secure context for domainless stuff(Hopefully nobody ruins that).
The problem is actual missing features that would need to be added. Mozilla tried with FlyWeb but abandoned the project.
The problem is actual missing features that would need to be added. Mozilla tried with FlyWeb but abandoned the project.