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UCC20225: PCB Layout Questions

Part Number: UCC20225

Tool/software:

Hi all, I'm new in designing H-bridge and face some design challenges.

I'm using UCC20225NPLR as my Isolated gate driver for H-bridge designs. 


Grounding Questions:
Q1. Should I have a connect the separated ground from primary and secondary side using a net tie so they have a common reference? If yes, will the noise couple into the primary side?

I'm using INA241A1 as the current sense device in my design at the same time. I dragged the differential input voltage through a slit from MCU ground to gate driver secondary ground (Motor Driver ground).
Q2. Should I avoid doing this kind of practice? or should I use isolated current sense?