I've rocked pixels for a good while now, but the Xperia lineup has always been something I've really debated.

My largest concern is camera quality: obviously it is Sony, but if you wouldn't mind, could you elaborate on their camera 'stack' a bit (esp. in relation to pixel phones if you have first hand experience...).

I own an Xperia 5iii (so about four-and-a-half years old now), and I also own a Pixel 10.

The Pixel 10's camera is unequivocally better. The JPEG outputs are processed, 'Instagram-ready'. The output from the Sony camera even in JPEG mode is considerably more muted, neutral, and has less contrast. Note that this is not representative of newer Xperias' camera quality; I've heard they have improved considerably. I'm not too concerned because I hardly use my phone to take photos; I have a Nikon mirrorless for that.