[LG V20 ROMs, Kernels, Recoveries, & Other Developm] runningslow:
Edit: So, I dirty flashed the 05/07 update and now everything is working as expected. I didn't even have to re-pair the AirPods. I just opened the lid and they connected. I'm happy, but confused....

*** original post below ***

First, some thanks! (and an apology for a long post!)

After previously running LOS15.1, I reverted my H918 to 100% stock unrooted Oreo. After struggling with sluggish performance and screen retention (I was using S-filter to mitigate it while creating other issues), last week I decided to re-unlocked my bootloader and put LOS16 on it. So I flashed the 10P KDZ and used lafsploit. Now I'm running 04/24 LOS16 build on my H918 with Nano Gapps and Gamma 1.2 kernel (I dirty flashed over LOS15.1). While I do miss the screen off functionality of the stock second screen, this is smoothest this phone has ever felt and I love the notch implementation. I'm even getting great battery life with my aging factory battery. Very happy with my V20 again. Thank you!

I have one weird issue, though, which may be isolated to my usage case. I've tried searching this thread for help, but couldn't really find any seemingly relevant information. I regularly use three different bluetooth devices: an Amazfit Bip fitness tracker, the MTCD head unit in my car, and a pair of Apple AirPods (2nd Gen). When I was running 100% stock Oreo firmware, all devices would connect just fine and I never had a signal issue with the AirPods. I could walk out of my office and down a short hallway to the printer (~20 ft thru walls) without losing the signal. Worked pretty well for making phone calls, too. I never tested the AirPods on LOS 15.1, since I only recent bought them while I was running stock Oreo.

Unfortunately, I'm having trouble with the AirPods on LOS16. They work as expected when they are connected, but the signal isn't as good either. My music will sometimes cutout with the V20 sitting on my desk or in my pocket. However, the biggest issue is that I have to re-pair them with the phone each time I want to use them. They are never listed on (or quickly disappear from) the "Previously connected devices" under bluetooth settings. I've even had them completely disconnect and lose the pairing while listening to music. I haven't tried making a phone call with them, yet.

The Amazfit connects with its app just fine and the MTCD in my car still works. The MTCD has stayed in my "Previously connected devices" list and connects every time. I've also never had any signal issues, but I use a windshield phone mount so its never far away with a clear line of sight. The MTCD was first device I tried pairing with LOS16. I'm not sure if that should matter.

While writing this post, I have also experimented with another bluetooth device: a set of cheap knockoff AirPods. They connect just fine, play music, remain in the device list when disconnected, and then reconnect seamlessly.

Are there known bluetooth issues? Is it a compatibility issue with the AirPods in some way? I know they're optimized to work with iOS, but they're still supposed to connect as a bluetooth device to Android. They worked great with stock firmware. Is there a difference in bluetooth protocols between LOS16 and Stock Oreo? Should I try to get a log?