It was more than 3 times between 1990-2015. I'll try and find the sales chart back.
Your last statement is also a head scratcher, not sure you're trying to say but every year since 2019 (so the last 5 years straight) GM trucks has outsold Ford trucks; not just "every other year".
What this means, is that the 2019 GM refresh has been very successful for them, even with the pretty terrible interiors for 3 of those years. Ford has been beyond stale with just a front facia refresh here and there (I can't contain my excitement for those Ford updates since 2010? which essentially amounts to new headlights
It's still the same terribly ugly rectangle coming at you down the road with no muscular body lines or sculpting or anything considered "style")