My name is Santosh and I’m a mapper in the OSM team at Lyft. 
Many thanks for letting me know about the issue on turn:lanes added.
According to our approach we refer to the green signboard closest to the junction. The green sign board is visible in below street-level imagery which is freshest: https://drive.google.com/file/d/1XgpxsNTSnUf14Keejiium5ersr25xSAO/view. If there is a directional arrow indicating an exit, we use that to assign the turn as slight_right.
I will be grateful if you provide your thoughts on these edits.

Kindly let me know if you're unable to access the imagery link, and I will resend it.

Best regards,
Santosh
