The reflections in MK2 Jazz are pretty bad, the Civic is pretty much 100% reflection free. Just one thing on the Civic is that there is a very narrow vertical reflection near centre upper part of screen and first time I noticed it I thought I had a cracked screen, ran my hand across dash and it disappeared ( the crack, not the dash ) so I was happy...
The Nextbase dashcams 512GW and onwards have a built in polarizing filter, but the downside is a bit less light into the camera at night - but hey-ho...
I have a pair of very light yellow sunglasses that I wear driving her indoors MK2, and some clip-on polarising filters if I need to wear my normal glasses ( normally only need glasses in low light and at night though, so hardly get any use ).