I don’t have any experience with the cams you mentioned (except the couple of nameless ones but here is what I know:
IR filter: some have the IR filter integrated into the lens, some have it on the PCB in front of the sensor. The IR filter looks like a piece of glass with a red tint. (The sensor is the cool Unicorn Rainbow type of color) Sometimes it says on the lens if it’s IR sensitive or not. If you run it without an IR filter it picks up infrared light, which gives weird colors in the day but does allow night vision by using IR leds. Still on my todo list haha
Screw thread: the screw thread size is indicated by M, common size for the micro AIO is M7 like these: https://www.banggood.com/M7-1_8mm-Wide-Angle-Lens-For-Mini-Camera-p-962825.html
Focal distance: Sometimes the screw thread is too long for the lens assembly, so you can’t reach the point where it focuses before the end of the thread is hitting the sensor.
FOV: They come in different degree FOV obviously, indicated by 1.8, 2.1, 2.5, 2.8, etc (Is that even true, can somebody clear that up for me?). I always forget which is what. lol that’s about all I can think of out the top of my head. I like the most FOV I can get personally, so everything looks faster. Does make it harder to hit gaps, but I’m so used to it, I can’t fly with a small FOV.