Sell “seasons”.
Put a prize on all videos released during each year. But once that’s paid I can have those videos forever.
No point on having to pay a monthly subscription forever to watch a video made 10 years ago from a youtuber that’s no longer active (maybe even alive).
I work in a public administration. And 90% of our work is done on webapps anyway. There will be no difference if the os is windows or linux.