What is your opinion in keeping BTC at a giant brokerage such as Fidelity?

Hi! Pretty much sums up my very basic question. Few months ago I liquidated my BTC (and other alts) being locked via Ledger after the backdoor fiasco. I felt safer with Fidelity during this time frame, especially when it comes to security. I do realize they are holding it as a custody holder, and I don’t technically “own” the BTC. However, I don’t see the benefit of adding a layer of complexity to holding BTC between the transferring around and paying fees. Also, I feel better when it comes to tax reporting and the IRS as it removes legwork on my part, and add legitimacy. Are there any other benefits to holding BTC in a hardware wallet other than “holding” my own keys? What am I missing here?