Sorry for the issues you've been having getting your Phillips bulbs working with your Nest setup. I know it can be frustrating when devices don't quite work right. Let's see what we can do to fix this for you.
We do have a help article that specifically addressed the Phillips lights. You can find that here: https://bit.ly/3jw8aPD
There are a handful of things you can try, but if you still have issues getting things to work, please come back and let me know.