Under the hood, lightning channels have their own addresses for funding. It is technically a Bitcoin address, but wrapped in a 2x2 multisig contract with another signer. That is what initiates the "channel" between both parties.
The sats in the channel are like a line of credit, backed by the Bitcoin that is locked in the channel. When you are sending sats, you are really updating the 2x2 contract of who gets what amount of the Bitcoin locked in the channel. When a channel closes, that contract is finalized and pushed to the blockchain, with the Bitcoin divided up and spent to the output addresses for each signer.
So the question you should ask is: Do you want to lock up all your Bitcoin in a lightning contract? These contracts can take two weeks to close if the other signer is unavailable, and there's still risks of losing your coins if the keys (managed by your lighting node) are lost in some catastrophic way.
I wouldn't lock up more coins than you really need to use for daily spending, there's no upside yet potential risks and downsides, however small.
Now if you are running a routing node and providing liquidity to the network, that is a different story.