Friends online notifications not popping up when they go online.

Thats not quite true. Check your notifications settings on the dashboard. For me notifications pop up everytime any xbox friend on my favourites list or not, logs onto xbox 1. However no pop up will show if your xbox friend logs onto xbox 360.

I think they will only pop if you have them as Favorite and even then I am not to sure. I usually have mine off so I will stop while I am ahead.

this needs to be fixed! its really starting to get frustrating.

Sounds like the dev team is in Xmas mode, meaning work is happening at a snail's pace. almost a million consoles have been bought from Black Friday and I'm sure there is going to be plenty more during the holidays meaning lots of Xbox's will be turned on
this month. I'm hoping MS is on top of this and making sure everything is working and running smoothly. The last thing you want is a flaky console when you first turn it on.

"OS needs optimization too. its always slow, specially using the snap feature"

You can say that again! The OS is absolutely terrible! It's not only slow but it's flaky and decides to just not work sometimes. I've already swapped my xbox one out with a new one and it's still terrible. Want it even more flaky? Put it in standby
mode. If it's one thing this pile of junk needs it's a full reboot every time.