While it’s possible to get data off a drive that’s wiped, I’d say it’s really, really unlikely. Generally files are still there in the data on the drive, just the headers are gone, but with each byte written that gets fractionally harder. the only chance would be maybe a data recovery service, and I don’t know that they can even do the flash drives on smartphones, and they’ll easily set you back nearly a grand - maybe more. it’s been a long time since I had to use one.

The people who steal phones are terrible people. I hope they stub their toes repeatedly for all their days and paper cut their fingers for good measure.