I don't know of a case where anything is "relying on extensions". The extensions I use are almost all for something not everyone wants/needs. And I use a lot, which is a good thing imo. I can disable or replace extensions that no longer do what I want or I no longer need.
Sure, but when stuff clearly doesn't work in a logical way, you would expect devs to correct the program itself instead of relying on extensions.
I don't know of a case where anything is "relying on extensions". The extensions I use are almost all for something not everyone wants/needs. And I use a lot, which is a good thing imo. I can disable or replace extensions that no longer do what I want or I no longer need.