“I get what you’re saying — but my plan is to never leave the house with that second phone. It will be used only at home for remote work purposes”
It is possible that a Google Voice number will work for you, you will just need a wifi connection.
No. There are certain websites I’d be working with that require text verification from an actual phone, not a virtual one. I have read other users saying that Google Voice and similar services do NOT work on these.