That is exactly what I am doing. The catch is that 4G data is horribly expensive in my area, download two youtube videos and you've blown a months Starlink fees.
In many-to-most cases 4G and especially 5G will simply outperform Starlink. If you have the 4G it may not even be necessary to bother with the Starlink. Unless you want redundancy of a 2nd connection or you can only get a really terrible data plan running both is not likely to make much sense. Starlink also has very onerous North-South field of view requirements that are actually often hard to meet even on completely remote sites (speaking as a Starlink customer with a handful of trees in the yard). Cellular is nowhere near as fussy about placement.
Starlink makes most sense when you have no 4G or 5G reception at all, generally speaking.
Not sure I agree about the 4G/5G comment. I got an unlimited 4g/5g hotspot through Calyx Institute that uses the TMobile network ( https://calyxinstitute.org/membership/internet ). I now also have Starlink. The Starlink service is faster and lower latency. I have noticed Starlink getting slower over the past couple months but it is still quite fast. In my experience the downside to Starlink is that several times a week it drops out completely for 10-20 seconds. I thought I was going to have issues with the trees near the location of my antenna but the app shows almost 0 obstruction in the FOV Starlink cares about. It was surprising to me how far north the antenna wants to point. I was picturing it pointing south like a dish would for a geo satellite but Starlink aren't geo.
I've also been a customer of two different local wireless point-to-point ISP. One worked great when it wasn't foggy and when the trees didn't have leaves - so only about 1/4 of the year. The other had 800ms pings and also went down frequently. Starlink has been game changing.
For most people unmetered 30-50 Mbps down is all they really need. Handle at least a couple streaming services or a video call. Stuff beyond that is basically luxury territory.
Yes and no. 30Mbps on a landline with zero packet loss and fixed latency is noticeably different than Starlink/5G/Wireless connections that are only mostly reliable.
It’s like how playing a game at rock solid 30 FPS is actually fine, but games with average frame rate of 30FPS that have significant random stuttering can be unplayable.
