If you happen to own a new Ryzen 4000U series laptop, then we highly recommend updating to the latest Radeon and Adrenalin drivers. Otherwise, 4K video playback may buffer and be unwatchable.
https://www.notebookcheck.net/Some-AMD-Zen-2-laptops-are-suffering-from-extreme-4K-playback-issues-the-latest-Radeon-drivers-provide-the-hotfix.478433.0.html