I just got a 2022 Ram 2200 with an 8" uConnect and no nav subscription. It's glitchy as well. Sometimes it works, sometimes it doesn't. Sometimes it detects my phone over Bluetooth, sometimes it doesn't. Sometimes it detects my USB thumb drive, sometimes it doesn't (even after repeated removal/reinsertion). Sometimes it remembers what media it was playing before when I start the truck, sometimes it plays Sirius regardless. I'm a programmer, and I'd be embarrassed to release code this buggy.
One thing I noticed and I'm not sure if that's the way it was designed or it's a glitch: when I play MP3s from my phone over bluetooth, if playback is interrupted (truck turned off, phone call, etc), when it resumes it always starts at the beginning of the next track. It does not continue where it left off. Is that normal with uconnect?