From my trip to Rainier National Park, planned for over a year. Just look at how spectacular the mountain is towering above the hills in the background. Wait, you can't even see it, a 14,000' mountain, due to all the haze and smoke from the forest fires.
Riding, even side roads, was all but impossible. Not so much due to road closures (though they closed two we planned on riding), as much as difficulty in breathing. Everything of mine smelled like soot after returning home.