I was a long time Gmail user, on the verge of leaving Gmail due to a long list of reasons. This bug was the final straw for me (I know it’s not Gmail’s fault). Got rid of Gmail completely. Haven’t seen this bug since.
Same goes for this Mail issue, it only seems to happen with Gmail/G Suite accounts.
But yes, I am also looking to move away from Gmail; not because of this bug but because I don’t like the idea of all my important online accounts being tied to a company that has essentially zero customer service or support.