Here is my log file relative to You Tube TV Provider. I have stopped using firefox on Linux and this log is from an attempt on a Windows 11 laptop. I am not sure caused the reference to Chrome (on the 5th line) as Chrome is not on this laptop.
2021/12/29 17:44:37.335112 [TVE] Auth starting for YouTubeTV as XXXX@gmail.com
2021/12/29 17:44:37.335164 [TVE] action=auth mvpd=YouTubeTV requestor=nbcentertainment
2021/12/29 17:44:37.443840 [TVE] action=error_response type=Other error=net::ERR_UNKNOWN_URL_SCHEME url=
2021/12/29 17:44:37.444975 [TVE] action=version product=Chrome/76.0.3805.2 jsVersion=7.6.274 protocol=1.3 revision=@b96ff990aaa019fca0942aadc19c721d20cfa213
2021/12/29 17:44:37.457122 [TVE] action=mock
2021/12/29 17:44:37.469939 [TVE] action=navigate url=https://sp.auth.adobe.com/adobe-services/authenticate/saml?noflash=true&mso_id=YouTubeTV&requestor_id=nbcentertainment&no_iframe=true&domain_name=adobe.com&redirect_url=https%3A%2F%2Fsp.auth.adobe.com%2Fadobe-services%2FcompletePassiveAuthentication
2021/12/29 17:44:37.470924 [TVE] action=request type=Document method=GET url=https://sp.auth.adobe.com/adobe-services/authenticate/saml
2021/12/29 17:44:37.670316 [TVE] action=wait_for_page
2021/12/29 17:44:37.721995 [TVE] action=request type=Document method=POST url=https://youtube.auth-gateway.net/saml/saml2/idp/SSOService.php
2021/12/29 17:44:37.722026 [TVE] action=auth_domain domain=youtube.auth-gateway.net
2021/12/29 17:44:37.866938 [TVE] action=request type=Document method=GET url=https://youtube.auth-gateway.net/saml/module.php/authbypass/firstbookend.php
2021/12/29 17:44:37.955728 [TVE] action=request type=Document method=GET url=https://youtube.auth-gateway.net/saml/module.php/authbypass/firstbookend.php
2021/12/29 17:44:38.017366 [TVE] action=request type=Document method=GET url=https://accounts.google.com/o/oauth2/auth
2021/12/29 17:44:44.272898 [TVE] action=page_ready
2021/12/29 17:44:44.272943 [TVE] action=wait_for_page done=true reason=page_ready
2021/12/29 17:44:44.272961 [TVE] action=fill_form u=lXX@gmail.com
2021/12/29 17:44:44.276016 [TVE] action=tvejs msg="googleLogin"
2021/12/29 17:44:44.299992 [TVE] action=wait_for_auth
2021/12/29 17:44:46.797958 [TVE] action=tvejs msg="googleLoginPassword found a CAPTCHA"
2021/12/29 17:45:08.300364 [TVE] action=auth_timed_out
2021/12/29 17:45:08.300429 [TVE] action=screenshot
2021/12/29 17:45:08.386175 [TVE] action=screenshot size=51691
2021/12/29 17:45:08.414895 [TVE] action=capture_html
2021/12/29 17:45:08.595649 [TVE] action=capture_html size=1845051
2021/12/29 17:45:08.614035 [TVE] Auth failed for YouTubeTV: Cable provider authentication failed