Frisco sits in a moderate-heat climate band, not the extreme end of the Texas heat map, but moderate still means long stretches of direct summer sun on a south- or west-facing garage door most days of the year. That's slow, steady heat cycling on rubber seals, plastic idler bearings, and the grease in torsion bearings - not a sudden failure, just a faster clock on parts that would last longer somewhere cooler.
Because so much of the housing here dates to 1985-2015 with a median of 2002, a big share of doors and openers across the service area are aging out at roughly the same time. Chapel Creek sits about 2 miles south, and the builder-grade doors on that side of town came out of the same production runs as the rest of the 2000s wave - same steel gauge, same stock openers. That's why we see the same failure pattern across so many streets in the same season instead of it being scattered randomly house to house.