I think most people would generally expect their laptop (especially a high-end model) to be capable of playing a video shot on their phone. But today's low-end phones have much more powerful processors than that old laptop.

I think most would likely watch the video on their phone itself.

I don't think it's unreasonable for people to expect to be able to tag their photos on their laptop, no? It's a very common workflow which is nevertheless kind of a pain to do on a mobile device.

Personally, I often use my laptop to watch game footage (with commentary) on YouTube or Twitch. That’s not a use case everyone will care about, but it’s quite a popular one.

YouTube has a ton of 60fps content