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4K is nice, but I still insist that most of us aren't watching on screens big enough to really get the full benefit of it. I can see very little difference on my 55-inch 4K TV between 1080p and 4K, except on YouTube, but that's because of the significant bitrate bump YouTube's 4K has over its 1080p. That's another reason to upload in 4K instead of 1080p even if you film in 1080p. When watching Blu-rays, though, the difference is almost non-existent unless you literally walk right up to the TV and are a few inches away from it. Now imagine how little difference there is when watching on your phone or a tablet!

To add to the above, Matti Haapoja (perhaps the king of pixel peeping "cinematic" YT) uploaded a bunch of videos that were edited in 1080p (and upscaled to 4K for export) and he tracked all the comments and not a single person commented that the videos looked different or whatever. In a blind real-world test literally not one of the pixel-peeping techno-fetishist pedants could tell. Of course you'd still want a good 1080p image, some 1080p cameras were better than others. The added bonus of this approach is you only need 25% of the computing power to edit it. Or if you go with h264 instead of h265 then it's even less!