My comprehension of the actual costs of the infrastructure required to run those services leads me to believe that Google One is essentially insanely overpriced. Perhaps it's due to high service needed customers self-selecting for the service or it's just price gouging - but the pricing for that is well above what such limited cloud storage offerings normally cost.

I have Google One and tried their support once or twice but wasn't impressed. I strongly doubt their ability to help with any somewhat technical question.

Does this really grant access to tech support for weird access issues like the OP?

Because if so, it’s cheap insurance at $20/year.