There is no reliable exchange.
That is part of the point. You need to figure out ways to keep most, if not all of you value in self-custody, rather than relying upon third parties to hold your coins.
If you are leaving your coins on exchanges, or you are buying other products that require that you keep your coins with third parties, you are taking chances.
In the very beginning of your bitcoin journey, you may well keep coins on exchanges while you are figuring out ways to keep your coins privately, and if you are buying coins on exchanges, you may well choose to ONLY periodically transfer your coins to self custody, such as once they reach more than $500, especially if you might be makng relatively small purchases of less than $100 on a regular basis.
Yes sir, there is nothing better if we fail to secure assets in our own wallet. I see many investors who still trust their large assets in the exchange even though there have been many cases where the exchange has been targeted by hackers and they still don't understand what it means for them.
Safety in investment is the main focus because it will be useless to make routine purchases if our assets are in a third party. I hope the incident that befell by Bybit will be a valuable experience not to trust any party that can control our assets.
In addition, it is true sir, even I myself withdraw funds to my own storage only once a month because it will save a little transaction fee.
I have reduced my quantity of coins (value) on exchanges over the years.
Prior to 2020 I probably had around 16% of my value on exchanges, and then in 2020, I reduced that value to around 11% on exchanges, and then in 2022, I reduced it to around 8% on exchanges, and these days, I have about 4% my total portfolio value on exchanges.
Yeah. Each guy has to figure out and find his way of balancing the risk, and hopefully not keeping too much value on exchanges because any of them can end up having issues, and cause lost coins or even frozen assets.