It's ~2026 –. ChatGPT still doesn't allow email change

You're kidding ?

I created an google account, use it on my android smartphone and buy some app, many years ago.

It's 2026 and Google still doesn't allow email change.

What do you mean? I've changed my email on my Google account a bunch of times.

Google only allows email changes if you didn't create it with a gmail address. When I found this out years ago I immediately scrapped that account and created a new one with a non gmail address before there was too much on the original account.

You cannot change your google email itself .. because there's no other reference to identify you with them. But you can use your email as the "inbox" for all other services. OpenAI doesn't have an "inbox" .. they accept other "inboxes" so they should allow you to change it.

That might be technically true, but in practice not an issue. I have a Gmail account, so the primary address is fixed because the address is the account, however I use a different address to sign-in, and Google recognises those addresses as being on that account. For pretty much all uses my account has a different email address.