I've worked from home via the Internet since the late 90's, and having a backup has been drilled into me as a hard requirement from hard-won experience. Living in Chicago this came in handy just last year when a box truck took out my primary fiber connection and most of the block for a few days, and I failed over seamlessly to Comcast.
When/if I get approved for Starlink, I'll cancel comcast and be using it as my backup. Hopefully they become mobile soon as well, so I can take it with me on adventures.