So is Microsoft, at least, on Linked-In. I tested it last year and deleted my profile. Had a friend check and everything was gone...Everything including public posts.
LinkedIn has a remorse period of something like 21 days. And I had plan to test recovery process also. Then got busy with a contract and was too late to recover. It's awesome!
I think any global IT company must deal with GDPR kind of like most automakers in U.S. follow California emission standards. It's easier to create a policy for all than create "one off" policies for a geopolitical region.
If it's sitting on a backup tape in a vault somewhere, they delete all copies of the corresponding one-time personal decryption key instead.