Speaking only for myself, any work which involves moving around, getting warmer is a no no, I avoid repeat movements, (eg walking) start off as cold as possible, avoid closed footwear, memory (or any other) foam, socks, long trousers, gaiters, boots (anything covering lower leg/ankle) as heat builds up. More heat = longer cool down.
Anyone who is daft enough or allowed to work in flip flops can do any job, as long as there’s a fan under desk/counter, better still, air con on lowest setting when driving