Please, please withdraw your bitcoins immediately to any hardware wallet (Coldcard MK3, BitBox2, Trezor T, ...).

You have zero bitcoins if you don't control your private keys. Millions of bitcoiners worldwide got screwed by the exchanges.

Coinbase seems to be the most trustworthy of all exchanges. Most coins in cold storage plus insurance on top of the hot wallet. They also offer Coinbase wallet where you control your keys.

I’m considering moving to a trusted exchange. Do you see disadvantages in storing and managing all on your own? It also carries risk. I’m more frightened to loose my Trezor T than Coinbase screwing me.

Even if you have a trezor (or other hardware wallet), you back up your private keys (all those words) somewhere else. That is the real security hole in all of this, not the risk of losing your device.

Similar situation for me: I've had an account since 2013, but Coinbase is just a month ago started asking me to verify my identity. That prevents me from selling or transferring my crypto, but I'm still allowed to buy more!? Their automated verification tool fails for my driver's license, and despite multiple support tickets I've gotten no human response. My takeaway from this is that Coinbase isn't mature enough to be trusted.

I can only echo the sentiment wrt Coinbase. They're failing address verification for me, in spite of sending them multiple different types of documents that are clearly showing needed data. And not a peep from direct help via tickets for weeks now.

Interesting, seems they either deployed a new verification system or having massive issues with the existing one as I’m in the same boat. Been verified on Coinbase for years now, and still shows up as verified on the verification page, but the dashboard says I have to verify again. None of my documents works, even though they worked before and all details match. Also wrote to them but no response so far.