The website is protected by Cloudflare, which is beyond our control. The connection to the website goes through Web Isolation, which is hosted on GCP. Cloudflare frequently triggers the challenge for connections from GCP, but it's normal as long as the user can pass the Cloudflare challenge. In other words, this is expected behavior.
When navigating to this website, the customer can try to impersonate the Chrome version to a newer version, which may reduce the number of times the users are asked to click on the Cloudflare challenge.
This is not a security challenge.