Splitting your BTC onto multiple addresses - risk vs management

I consolidated my Satoshis on 2 addresses a while ago. I am now thinking it would be safer to store them on multiple addresses with lower volumes. What issues should I consider in respect to the risk of a single address being compromised vs the managing and storing of many more private keys or seed phrases?

Also: - should I get rid of legacy addresses? - should I encrypt my private keys again and store the password separately from the keys?

Ideas needed (for non-cold storage).