Question Streaming to twitch off Xbox series S

[DaaQ]

What does xbox use to stream, built in encoder? hardware encoder? What about the bit rate, what should 1080p bitrate be set at? Is 65000 1080p bitrate too high for a series S to handle?

Another question is, if the person has a 50M upstream bandwidth, with Gateway provisioned for 60M is a 65000 bitrate over saturating the upstream capability?

This is streaming to Twitch.