Incorrect google bot blocking

I’m getting firewall events that show a block for an alleged fake google bot:

But if I check the host (as recommend by google: https://support.google.com/webmasters/answer/80553?hl=en) it gives me this for an IP:

host 34.76.251.191
191.251.76.34.in-addr.arpa domain name pointer 191.251.76.34.bc.googleusercontent.com.

This is a legit google bot… can you update your blocking list (rules 100035C en 100035D) for this?

Not necessarily -> Reporting not a fake Googlebot

Hmmm, I see.
Doing a WHOIS on that IP gives the following comment:

See the first “Comment”:

The IP address under this Org-ID are in use by Google Cloud customers

This is someone renting server space from Google, not an official google crawler.

This is also supported by your quote:

the rDNS for the IP will end with googlebot.com if it’s owned by Google.

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