After upgrading to Chrome update the version to 91 or later, USS keeps asking for login credentials.
The flags #same-site-by-default-cookies and #cookies-without-same-site-must-be-secure have been removed from chrome://flags as of Chrome 91, as the behavior is now enabled by default. In Chrome 94, the command-line flag --disable-features=SameSiteByDefaultCookies,CookiesWithoutSameSiteMustBeSecure will be removed.
Release : 17.1
Component : SDM - Integration
USS is already a deprecated component and this is technically not feasible to address in the USS component.
USS users are strongly encouraged to migrate to the ServicePoint UI as soon as possible.