It doesn’t crash a ton (a few times a week?) but when it does it is almost always scrolling through my Vinyl Subreddit feed. https://www.reddit.com/r/VinylReleases/.rss is the link. It’s a fairly active feed - often 50-100 entries a day. I go in once or twice a day to scroll through the titles and then mark all as read. If NewsBlur is going to crash, that’s when it happens - scrolling through the entries.
iPhone 12 Pro Max (though this happened on my iPhone 7 as well)
iOS 14.2 (though this has been happening for a long time)
Dark mode (if that matters)