it could be a good thing to do and can at the same time be a risky thing to do.
good thing because with two wallets, you are saving yourself from the risk of losing all your assets if there is a compromise of the single wallet you are dealing with, on the other hand, it could be looked at as a bad option if we consider that, with multiple wallets, you have to consider how to store your seed phrase in multiple locations that are safe and at the same time accessible.

One Bitcoin at present is huge and trying out the best safety measures is the best thing to do. old investors that have such an amount of bitcoin in their wallet will be in the best position to make a statement regarding what it feels like to have all your assets in a single wallet or use multiple wallets to store your assets. For me, a single wallet is better because once I put all the security measures in place, I dont need to have divided attention regarding dealing with multiple wallets.