You can find a link to your Google reviews page via desktop or mobile:
Desktop
To get a link to your Google Reviews collection form you need to go to your Google My Business.
Select the required profile and click View profile.
On your Google My Business profile page, click Ask a review
Copy the link to your review collection form.
Mobile
Go to Google Maps and click on your profile icon. If necessary, select the profile to which your Google My Business is connected.
Go to Google Maps and click on your profile icon. If necessary, select the profile to which your Google My Business is connected.
Select Your Business Profiles
Scroll down
In the Get reviews section, click Share profile
Copy the link. Done.