SameSite attribute for Cookies / Hosted Pay page solution ?

Our website doesn't set cookies, and no magic have we found to enable or mitigate this through our site by enabling this behaviour on our site.

The problem is that no Chromium based browsers are working, this behaviour to drop cookies that are not set with "secure and Samesite=None" has been adopted across the board. All customers are met with is a gloriuos "array" message on a blank page.

 

I am pretty sure this is the same issue:

https://community.moneris.com/product-forums/f/5/t/1117

www3.moneris.com/.../index.php does not set these attributes for its cookies as of today, how come?

Tech support and developement has been silent on this and no mention or updates for anything on how to mitigate this! Not sure if it is our problem to fix especially given the fact that these features were enabled on our site and it still will not work in a Chromium based Browser.