Just open channels randomly and use them. Or use an autopilot. Liquidity management helps you optimize things like success rate and fees but not necessary at all. People just like to complain.

Well, you can use an LN wallet like Blixt, OBW, Phoenix or Breez and it will open channels for you automatically. But you won’t have to do “liquidity management”. That’s why the LSP concept exists.

If you aren't smart about it in Phoenix you pay a lot of fees, and imho it wasn't well explained in the onboarding process when I started using Phoenix recently. Also, you can't receive zaps to Phoenix or any of the others you listed.