npub1mu04u2fuf802nqjrppa7hnjua5rzqum78yyftwddgqslgyyw28ksw0t8kz (npub1mu0…t8kz)
I am fortunate that I can use my computer mouse right-handed. But the phone issue I totally get. The phone makers assume you will use a right thumb.
Think about it though. Almost all the design on a smart phone is digital. The designers should be able to make a "left-hand" mode where all the controls switch to the mirror image of the right-hand controls.