It's sad that when I discover a new app that does provide value, but it's clearly a SPA in React or similar, I know that sooner or later it will degrade with all the bugs all these apps seem to have. Forms resetting while typing into them, after modifying one value a few seconds ago that autosaved. Using the back button and getting shoved to the top of a long result set that I had previously scrolled down and waited for each "page" to load.* Staring at throbbing grey squares for 10 seconds...