Brain dead easy usually requires custodial service. Even on-chain Bitcoin is used by most people through custodians like Coinbase.
Discussion
I like the tradeoff that liquid offers. Technically custodial but the rug risk is very small. UX is also great.
Liquid is great. I just hope they geographically distribute the functionaries enough to minimize the disturbance to the network when the regulatory heat inevitably comes for them.