Light colors are good for summer suit, but not white, go with sky blue, apricot, linen
Many brands are doing light colors this year, like cosmo tailor, indochino
Not white but cream-colored linen suit once for a wedding. I can't think of an event to wear one except for weddings.
I haven't worn a white suit before and I probably won't in the future unless the occasion I'm attending requires me to.