I used to use RiF back in the day when it was still a buggy mess. I don’t even remember when I moved to the native app. I don’t agree with Reddit’s policy update (why I’m here) but I thought the default app was fine for normal browsing. I never had issues with the video player or anything else.
I use Samsung Galaxy devices if that’s relevant.
I don’t think I’ve ever used the official app. In general, I never use the official apps for anything that I can just use in a web browser. In the off-chance that I use a website that either doesn’t work on mobile or has missing features, I’ll either use a third party app or just not use it at all. Someone recommended Boost for Reddit several years ago and I’ve only ever used that.