Hello,
I know you should always have your coins on a hardware wallet.
This is not true, it's all about preference and having to through a couple of dollars in a luxury crypto product I know you should always have your coins on a hardware wallet.
But for my trading position I don't want to put the coins on a hardware wallet because that would be too cumbersome but I want to distribute the coins on several exchanges.
Bad idea mate, so as long as you don't have access to those wallets privates keys to are standing on thin ice and this has been preached year in year out... "Not your private key, not your coins" you don't want to be caught on the wrong side of crypto users should something happen to any of those exchanges. In your opinion, what are the most secure exchanges in the world, i.e. where can I be most sure that the exchange will not go bankrupt, be hacked, etc.?
When it comes to the world of finances trust nobody not even your shadow! Besides best exchanges and what not I don't have any on the list as most secure but I would prefer a dex over a Cex as I have full access of my wallets pvt key.