I have a SEA-HNL trip coming up in a few months. Anyone fly that recently and, if so, do all regular coach seats recline?

Reason I ask is that I just flew Alaska for the first time in ~6months, SEA-LAS (737-800/900), and I was surprised to find that the seat did not recline both to/from. I had row 15 one way, can't remember the other flight but it must've been ~row 14 since it was a couple rows in front of the exit row. Seatguru says row 15 has "limited recline" on these planes, but my seat had no recline, period! Also, I didn't see any other passengers in my row or in front of me reclining. SEA-LAS is just a 2hr flight, but my back was getting sore and SEA-HNL would be really tough without any recline.

I'm wondering if certain planes have certain sections of the Y cabin that have non-recline seats. If that's the case, I want to be certain I assign myself a seat that does recline.