Unfortunately I am missing a "modern" rim brake bike to confirm I am not going mad, but back in the 90s about half of the time we fixed a flat at the back the s

Unfortunately I am missing a "modern" rim brake bike to confirm I am not going mad, but back in the 90s about half of the time we fixed a flat at the back the shifting was off after that and needed readjusting, and replacing brake pads usually meant fiddling for an hour until everything aligned well again. Compare to any disc brake bike I have owned (bought later than 2010)... everything is super smooth. I just can't believe both my dad and I (when I was teenager) were completely inept and now as an adult I can magically fix bikes.