So I was researching your exact same setup and then I watched the BTC Sessions tutorial on how to set up an alby hub.

He does go through the issues you were talking about in point 1.

I ultimately decided against for now. I signed up for Primal Premium and can zap with my mobile but not on my PC(which is what I use 90% of the time).

If you watch this video it may help you out.

primal.net/btcsessions