I have been using git logs and cvs logs to see who does what, across hundreds of developers, since 1997. I don't understand how people, managers, claim to not be able to figure it out.
And if people are doing work in an engineering organization that isn't backed by commits to some durable and versioned system, that is a huge red flag. They should probably not get promotions till they automate and make their work flow use version control. Even in the 90s this was true (the "install the OS on the new hardware" team would have things more automated than many "application dev" teams). Now in 2020s, the whole AZ should be in git and the change implementation procedure should be a variation on a big button that does "push master to n% of live; wait for monitor/validate scripts roll back or push more; repeat"