This should be fine: Using your phone as SMS 2 factor authentication is a separate thing as assigning the phone as "your phone" in your Google account (which works as an account recovery too).
If you don't have your phone setup as "your phone" and they clone your SIM they can use your number to get 2FA codes potentially, yes, but they still need your password to log in. Supposedly they won't have that
Do you have a blog? If not, would you be interested in making one? You could post it on HN and as the replies surely are telling you already, people will enjoy reading it.
You may get some useful comments too with suggestions for different supplements and stuff.
If you don't have your phone setup as "your phone" and they clone your SIM they can use your number to get 2FA codes potentially, yes, but they still need your password to log in. Supposedly they won't have that