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.
I’ve been having the same problem, and it seems to be some kind of https resolution thing. I thought maybe it was a proxy or VPN issue, but I disabled those and rebooted and it was still the same.
What fixes it for me is to load literally any page(I use duckduckgo) on the built in browser on Lineage and then go back to Fennec and it runs like normal until it doesn’t again. I’m hoping an update comes soon.