Why is my circuit breaker occasionally tripping on its own, and then not tripping under the same load?
Bad bulbs bad bulbs, what you gonna do?
Some of the funky new bulbs got stuff in them.  This question covers that.
Why is my lighting circuit tripping the breaker?
I do not pretend to understand what that stuff does but I do know that failing LED bulbs can display a variety of fascinating behaviors not seen with older bulb types.
It will not be expensive to replace all the bulbs in these lights with new bulbs.
Not expensive because you can save the old bulbs.  If issue persists despite changeout then you have a lot of spare bulbs you will eventually use since you have a lot of lights.
If all new bulbs fixes the issue then you know it was one of the old bulbs.   Test them one at a time on a lamp in a special penalty box circuit that is not being used for anything important.  When you find the bulb that trips that circuit, it goes in the trash and the rest can come back into the game.

Psychically putting myself in your home (your beer can collection is sweet!) and examining your bulbs, I found two LED bulbs that looked suspicious.  Different than the brother bulbs.  I was only there psychically so could not remove them for you, but if it were my house I would start with changing out those funky looking ones first before changing them all.