an L2 that refers to things like Liquid or other shitcoins.
Liquid, ark, spark are not L2s. You can call them sidechains or statechains, but are not layers to Bitcoin.
If you want an example of a layer, you can consider a LNbits instance or an Alby hub with sub-accounts, as a layer... on top of your LN node. It still uses sats from LN channels, but is still not a sidechain.
Consider as Layer 2 the services build on top of LN, even like SN.
Liquid, ark, spark are not L2s. You can call them sidechains or statechains, but are not layers to Bitcoin.
If you want an example of a layer, you can consider a LNbits instance or an Alby hub with sub-accounts, as a layer... on top of your LN node. It still uses sats from LN channels, but is still not a sidechain.
Consider as Layer 2 the services build on top of LN, even like SN.