I have a Google acct linked to my hotmail, then created a GMail account and have a Google acct linked to that, that I never use.
Took a year to get to lvl17 for me, because barely touched the game, switched to a new account and got to lvl17 in under 2 weeks with my niece so, it’s a minor pain… but… if it solves the constant clear data/cache issues it’s worth it.
Noticed as well, a lot more game issues with connectivity and hanging and such, not sure if related? or coincidence… cell service here is lousy so could be either/or. But definitely more issues the past week with no internet messages and the spinning ball.