1440p distant play from beta insiders department?

Im solely within the beta department of the insider program, not alpha which are supposed to be the one ones with this and someway I triggered 1440p distant play. I attempted distant play on the Xbox app and it was 1080p, then 1440p appeared within the choices when utilizing the Xbox web site by means of edge (which I modified to for the readability enhance) and I enabled it, then after I tried the Xbox app once more It was working in 1440p mode.

Did I allow it early or did they push this replace all the way down to the beta insiders?

Edit: they lately added it to the opposite branches