Report in iframe is only shown after page reload in Chrome

[houseMouse]

All browser have third party cookies enabled.

On Edge:
Clicking the sign-in button loads the report as expected

On Brave Browser:

Clicking the sign-in button loads the report as expected

On Chrome:
Clicking the sign-in button does nothing. Only when fully reloading the page the report is shown

On Firefox:
Clicking the sign-in button does nothing. Only when fully reloading the page the report is shown

Questions:
How can this be fixed?

The majority of my users is using Chrome, I'm growing tired of telling them to use Brave/Edge instead