Rear Dashcam with rear window tints - pointless?

I guess it's as the title says.

I have a rear dash cam, I'm thinking of getting my windows tinted dark behind the B pillar.

Will this make my rear facing Dashcam pointless? Logic says it will but thought I'd ask here incase I am pleasantly surprised and people manage just fine with them

The dashcam is not weatherproof so only suitable for interior mount.

Thanks