On the too big better than to small thing, not really. Gloves that are too big will impede your ability to work with your hands, and other equipment that's too big may slip and need to be moved back into place. which really isn't something you want to be doing all the time in this scenario.
I've worn a N95/FFP3 mask and they've been too big for me. What that means is that the mask sits so high on my face it's almost covering my eyes, and if I was wearing protective goggles would be interfering with those. If I pull it down even slightly, the bottom part then cuts right into my throat, making it difficult to breathe. The same mask on my DH fits fine, and he can put his on and be good to go. I'm constantly fiddling with mine. In a virus protection scenario that's a big problem.