Some Firefox users noticed playback issues on YouTube for several months. These affected high resolution videos only, from 1080p and up. To make matters worse, no clear pattern could be identified.
Some videos played fine, others would stop abruptly when they ran out of buffer.
Simple solution is to not pay Netflix and just pirate their content. They go out of their way to make the experience worse for paying customers on a regular basis. Sonarr+Jellyfin on an old computer with no video card and you’ve got a better Netflix where your content doesn’t just magically disappear or fail to play on some devices.
This ends with $500/mo Netflix subscriptions. An employee comes to your house and holds a laptop up in front of your couch while looking for hidden cameras camming the show.
Bathroom breaks are allowed, but they’ll pause the show.
I’ve been really ahpy with Stremio + Real-Debrid. Yes, it costs money, yes it’s worth it (less than 3€/month).
Any piracy costing money is also really really likely to be shut down relatively soon, making you need to change your setup.