2004 Chevy 2.2L Eco was a darn good common sense designed engine, water pump was timing chain driven, zero axial load on it, never had problems with it. PS pump was also driven by the chain, but on the backside of the camshaft. Single drive belt just drove the alternator and AC compressor, later not used very much up here. But replaced that belt at 100K anyway, but not sure why.
Also this at a 100K.
Call this preventative maintenance.
Back in the 80's, my entire family went Japanese, Nissan's, Honda's, Toyota's, all had timing belts. Would bring them over for me to replace them, then take my six kids and me out to dinner. Average parts cost was less than 25 bucks. We had fun.
For the fun of it, called my Toyota dealer for my 88 Supra with 49K miles on it, was concerned about the age, 2,600 bucks! Did it myself, could see why, radiator, PS pump, AC compressor, alternator, water pump, all the turbo stuff had to be removed first. Had to kick out my other vehicle, other stall was loaded with parts.
Good thing, both the tensioner and idler pulley bearings were stiff, high quality, but but push those out with good made in the USA bearings packed with my own Wolf's high temperature red wheel bearing grease and the camshaft seals, also old. Laid out less than 40 bucks for parts, also was a fun job and done right.