I went back to an MacBook pro M5, after being away from Apple for a year or 5 (Lenovo etc).
I tried to re-enable my apple account but I had to wait 5(!) days to change the password. I ended up making another account.
It's a defence mechanism against account hijacking if someone has access to your phone number, linked to your account. Went through the same procedure to recover an account I haven't been using for a few years.
