in your opinion, do you prefer to store your BTC in several wallets, or choose to store it in one wallet?
Since I'm a guy that can forget everything in an instant, I would rather go with one wallet.
One wallet, but I'll prefer the safest (currently) one that we have right now and that is a hardware wallet.
What's ironic on my part is that I don't use a hardware wallet, and I'm only using Electrum, and has been using Electrum for years already and yet, I didn't encounter any single problem from it. I'm not saying though that you will not experience it at some point, but lucky for me, I didn't. I will always recommend storing it on a hardware wallet, but if you don't have the funds to buy... then have funds to buy one!!!.

Kidding aside, I don't see any benefits of storing it on multiple wallets, and that might cause trouble for some.