Most of the companies in the list above where the number 1, major leader, unbreakable, ... until some inflexion point, and then vanished.

Apple is not decreasing today at all, but it has not made any vision-revolution recently either. The most innovative things they launched are not visionary, the are mostly logical technological upgrades (M1, cameras, ...), or are being reverted/scrapped/fixed (the touch bar, the notch, ...). It also has a huge pressure to not be monopolistic anymore with the App Store.