Very simple, I used some trim tools to pop out the plastic pieces. I only had to remove about 1/4 of the panel to replace one of lights. Lierally took me maybe 10 min from start to finish
I attached some photos, hopefully these will help. The large plastic L shaped piece at the bottom of the lift gate actually needs to be popped out to help loosen the trim. It then just pops back in
Took me about 5 minutes start to finish. Bulb was 2825. I was going to replace all the bulbs back there but it was so easy to pull the panel using the plastic tool (and knowing where the clips were) that I did not bother. Thanks for the pictures!