Thin breast milk?

I breast feed but try to pump at least one bottle a day so my husband can feed her too.

I thawed 2 bags of my stash (2oz each) that I pumped a few days after my milk came in and I feel like there was so much more fat in it. I put both in a bottle to feed her and she ate it so much slower than usual. If it makes sense.... you could almost hear it being thicker too.

My daughter sleeps 8-10 hours a night, only naps about 30 minutes each time during the day. She doesn’t seem super hungry after she has a bottle, but lately she’s been acting hungry a little sooner after being fed from the breast. I assumed since she’s 3 1/2 months it was cluster feeding but now I’m questioning if there’s just not enough fat or something.

These are bottles currently in the fridge.. is that not enough fat?! It just looks so thin to me idk 😭