It was inspired by an S10+ user so I've put the thread on the Galaxy S10e | S10 | S10+ | S10 5G board, but I'd welcome the thoughts of other smartphone range users. 
Thread here: https://eu.community.samsung.com/t5/Galaxy-S10e-S10-S10-S10-5G/Calling-All-Left-handed-People-Though...
