There is a recent instance (March 14th 2022) of the breaking of RSA public keys which were generated carelessly (full report here). Apparently that version of the software is no longer used.
Cryptographic keys generated with older software now owned by technology company Rambus are weak enough to be broken instantly using commodity hardware, a researcher reported on Monday. This revelation is part of an investigation that also uncovered a handful of weak keys in the wild.
the vulnerable SafeZone library doesn't sufficiently randomize the two prime numbers it used to generate RSA keys. (These keys can be used to secure Web traffic, shells, and other online connections.) Instead, after the SafeZone tool selects one prime number, it chooses a prime in close proximity as the second one needed to form the key.
Edit: Here are some more links
Fermat attack site: https://fermatattack.secvuln.info/
Script which checks this and other vulnerabilities: https://badkeys.info/