ScottHope:
In Chrome, go here...
chrome://settings/clearBrowserData
Click the advanced tab, check all the checkboxes except the cookies and other site data. Then click clear data.
I appreciate the idea, Scott. But one of the settings there under Advanced is Passwords and other sign-in data. I'm not willing to clear that. I have way too many passwords saved for sites other than WGT, and I'm not going to wipe them out just because a button on a gaming website doesn't work properly.
Honestly, I think there is something else preventing the PLAY NOW button from working. I don't think it's caused by some fouled-up browser data.
For reference, I'm using Chrome Version 87.0.4280.141 (Official Build) (64-bit) and the same version of the WGT app that you are. I'm pretty sure that the WGT app version doesn't matter, anyway, since the browser (ideally) will just try to launch whatever version of golf.exe you have installed.
I also tried (temporarily) disabling my antivirus software to see if maybe something in that was blocking whatever's being executed when you click the PLAY NOW button. No luck with that either.