How do I replace the LED bulb in this ceiling light?
How do you change a flat-faced PAR light bulb?  Do not remove bezels.  Rotate the light bulb by its face.
How do you grip the face of a PAR?  With a suction cup.  They make suction cups on sticks for expressly this purpose.  That is why the face of the light bulb is smooth and has all the Fresnel lensing on the inside.