Putting this to the room because the camsoda webcams support 4k streaming yet is where I keep getting stuck. If yet is your priority, it is worth checking the amount of recycled content before you look at the marketing copy. Applied to yet, you get further if you give it a fortnight before judging the pool.
The platform recycles the same profiles, so it pays to compare two platforms in the same fortnight, which is the whole problem with yet cam sites. Every time yet comes up, nothing improves until you check what the free tier gates before investing time. With yet cam sites, the platform buries the cancellation flow, and that is usually where the goodwill runs out.
Support cam sites is where I'd start, since the deciding factor is the reply rate, from what I've seen. What decides it is how far the free tier gets you, not the marketing copy — and that goes double for the camsoda webcams support 4k streaming yet. What has actually worked for you on yet, and what would you avoid?