Please move the user selection from the website start to the user drop down in the right corner. It is really annoying that I always have to choose my user at the loading of the website because in 99,99% I wan't the same user I have selected the 900 times bevore ;-)
I think in Settings --> Web --> General if you select "Automatic Login" your browser will remember the last user and load without the select user option. It seems to work for me. It would be browser specific, so if you use multiple computers you would need to set that in each computer or devicee. Not sure what happens if you clear browsing history, cookies, etc - it probably forget the auto login. :)
This is at the start so that Plex Home works the way its designed (IE limit who can see what, if you just logged in and you had to change users, teh parental control features would be useless. But as leelynds mentioned setting the automatic login is an option for those who dont need this.
Early 2021 clean-up: implemented (user switching)