just make sure your charger is faaar away from the tube, please. (and thats also true for your phone charger :-)
My phone charge lasts longer than 30 minutes. And it’s provably water resistant to tub depths.
I certainly don’t code in the tub. Strictly reading and discourse.
I looked up the history:
1961 GFCI invented by a professor at UC Berkeley
1971 Added to NEC code for outdoor outlets
1981 … bathrooms
1987 … kitchens
2005 … laundry rooms and unfinished basements
2014 … crawlspaces, around pools and hot tubs
Sure! France,2021: https://www.spiegel.de/panorama/frankreich-verkabeltes-handy...