I’d love to hear from the guy who tries to install a GFCI breaker for the dryer on a three wire system. The neutral to case connection for the three prong dryer cord May give that GFCI breaker a run for it’s money...but, hopefully these GFCI breaker requirements on dryers won’t be required in older homes. New installations will definitely require it.
But I could see Home inspector‘s implicating it on their Home inspection reports for home insurance policies.
Who knows, this might be the new spike in our industry. We may have to run New dedicated 4-wire dryer circuits with GFCI protection in older homes every time I Home inspector puts it on his report for a new buyer to get insurance..