Some developers are afraid of ‘delegatecall’ because they have been told it is “dangerous”. Fear and danger come from not understanding how something works and how to use it safely. For example most of us are not afraid to drive a car because we understand enough about how it works and we know how to do it safely.
I wrote an article about ‘delegatecall’ and how to use it safely here: Understanding delegatecall And How to Use It Safely - by Nick Mudge 💎 - EIP-2535 Diamonds