Whenever I see a post like this, I feel puzzled asking myself, “How come there are still some people around here who don't seem to understand the obvious difference between keeping coins in trading platforms/online wallets and cold wallets?”

That's a truism that's as old as the hills:
keep all the significant amounts offline (cold wallets, paper wallets), while keeping the amounts traded on exchange in trading platforms.

So many people wrote absolutely sensible things to this topic.
Hopefully, this will help the rest of us keep our crypto safe