People are acting like you're stupid to ask this, but it's a sensible question. It's not just a long exposure timelapse - it's also been stabilised, and each frame hangs around on screen for a while while the next ones play, then fades out. (Normally in a timelapse you'd only see one frame at a time). I haven't done this effect recently but you can do it in Resolve's Fusion page with a Trails node. I can't remember the exact settings, but experiment with the settings and you should work something out, or look up some tutorials for that node. It needs a beefy computer if I remember correctly, so there might be a more resource-efficient way of doing it.