I keep trading funds on Coinbase but hold the lion share on my Nano. I don’t see a logical reason to hols them all on Coinbase when their fully safe with my person. Although Coinbase has a good track record you just never know because if your account gets hacked the coins are gone. This is why hackers call exchanges honey pots.
Store it at Nexo and earn cumulative 4% apr in the crypto that you are storing. Never locked up and can be withdrawn with no fees. Wallets are insured $100 million.