sneeze7 I've purchased three or four and used them for about two years each (I get bored) - then either sold them or traded them in if I purchased new from Google directly
My current phone is an certified open box Pixel 9 Pro Fold from Best Buy that I've had for about five months now with zero issues.
Maybe I've been lucky, but so far no real issues with any of the phones purchased. I usually only look at good and excellent rated items (excellent = usually one year warranty on parts and labor from reseller) refurbished items.
My wife has bought a few Amazon Refurbished iPhones and has had zero issues as well.
Again, good luck with your purchase