Guys! To disable Philips Collections bar or also known as Philips Apps Tray at top of Android TV leanback launcher. All you have to do is find leanbackcustomizer in System Apps or Running Apps and turn off its notifications which can be turned off at button of the menu when you click on the service.
I couldn't find a single source which mentioned these steps to take to disable Philips bloatware. I figured these out on own. I am not aware of any other methods that has the same results.
Enjoy your less of a pain Android TV by Philips
Also To disable recommendations, disable org.droidtv.nett_launcherapp in system apps or running apps. Hope this also helps debloat your Philips Android TV to a manageable level. However, this doesn't get rid of the recommendations field only apps that shows up.
Thank you, I had tried to disable it somehow but never really found out which app was responsible for it. Philips TVs don't get too much love around here but this actually solves one of only a few issues for me.