Phone is not the right tool for the job. I usually use a Mobius for dashcam/helmetcam duties, but have been playing with a GitUp F1 lately, both in wide angle versions.
https://www.mobius-actioncam.com/ (Mobius 1 Wide)
I still have Mobius in the cars, but this season on the bike has been the F1 on the helmet. Here's how I mount it:
When I switched, I just pulled the Mobius off and put the F1 on the same mount in the same place. Battery life on the F1 isn't as good as on the Mobius, but it does 4K and I can connect it to my phone via WiFi to pull video off instead of having to pull the card, find the OTG reader, etc... The Mobius is lighter and cheaper, and the video is still pretty good. If you dial the F1 down to [email protected] you can use image stabilization.
If you just want simple, go with the Mobius. If you want to play with it and tweak on minor improvements in video quality and connectivity, the F1 is decent. Whatever you get, I highly recommend using a helmet mount over bike mount, particularly on something as buzzy as a thumper like the TW. I never got anything worth a shit out of bar/plastic mount, it all looked like it was shot through Jello.
Edit: Another reason to go helmet mount over bike mount, is that you get a much more appealing view. You get to see more of the environment and the bike itself in action as you move your head around. It makes for good dynamic context instead of just one static view aiming forward.