In my experience with my phone Samsung S10e, and my provider being a reseller, I am able to use 4g and 3g (when available). And 3g provides better and superior coverage.<p>With LTE, few times I am unable to browse or do anything because I have no signal, if I switch to 3g I immediately have 2 or 3 bars and can use it. Unfortunately, I can't force the phone to use 3g as I used to do, because more and more areas are now without any kind of 3g coverage.<p>So I guess I will have just bad 4g signal, until I decide to upgrade a perfectly fine working phone with 5g support, and only then I will be able to discover if 5g is good as 3g or bad as 4g.