Using Fennec F-Droid, some pages the progress bar hits 25% and then hangs for an amount of time between a couple minutes to forever. Usually the same page will always hang around the same time, but trying hours or days later it might work. Sometimes the page loads after a couple minutes, but if it doesn't, I can come back hours later and the progress bar is still at 25% for that tab. Killing the app doesn't seem to make a difference. I do use Ublock origin and one other extension to redirect reddit links to old.reddit.com. Haven't started disabling extensions yet, I wanted to see if anyone else is experiencing this on Android.