Again, all these digital modes work just fine with out the internet.
Some years ago, someone came up with the idea to have an Event several times a year which is a simplex event. while I don't necessarily agree with all of the guidelines, DMR, D-Star and Yaesu's C4FM is included as well as analog FM. One of the most frequently asked questions was " Wait, you mean you can do digital without the internet?".. It's sad people didn't even know this and were literally shocked to find out yep, hook that radio up to something other than a rubber duck or magnet mount on a pie plate and see what happens.
Thus far, and no surprise to me, D-Star has always provided the furthest contacts often, surpassing non-legible signals on analog. We do not have P-25 in this, frankly few have radios for it in my area and similar to most DMR radios, you need to use a computer to program it. DMR has provided some fair range but, honestly working the same guy, the same location and same antenna, if we swapped radios from D-Star to DMR, to Yaesu, D-Star was always the one that came thru. Now I don't post this to debate or even discuss, I'm telling you, what's happened over a 4 year period now since 2021, twice a year. (one in January and one in July). there are more Yaesu digital contacts made simply due to more people having those radios and frankly no knowledge what so ever is required to do yaesu's digital but of the people that had all three modes, D-Star talked the furthest.
I have and use DMR and D-Star frequently between a group of us here, even doing some 33cm DMR. the only time my yaesu mobile comes out of the box is for these events and at that, I run a 991A on HF and 6 so occasionally I'll not even bother and just use that on C4FM.