We need to exert more pressure on apple and eu to not remove PWAs. Every signature counts, please sign and share EU has already started a preliminary investigation on this http://archive.today/2024.02.26-223134/https://www.ft.com/content/d2f7328c-5851-4f16-8f8d-93f0098b6adc
Not tried in a while but it used to just be a case of leaving it disconnected from the net during setup.
Failing that you can still sign up with a throwaway account and convert it to local in the options after installation iirc. It’s not ideal but it’s still something at least.
There are additional steps now which I mentioned.