Plasma widgets are a gaping security hole.

Aka “thing that isn’t sandboxed, never has been sandboxed, and never has been claimed to be sandboxed, is in fact not sandboxed”. Just like any app from your distro repositories, or appimages, or games in Steam… Or even most Flatpaks by default for that matter.

Widgets being sandboxed would be cool and is a long term goal (which is way easier said than done!), but don’t present them not being sandboxed as some irresponsible thing someone does because they don’t care. Your expectations of security simply are simply completely misplaced.

What do you mean? Screen savers have been possible for many, many years…

VRR doesn’t require additional bandwidth.

Try Linux on a 4k HDR 120hz TV and see what happens.

It works fine, with chroma subsampling. At least I personally don’t ever notice it on the TV.

That’s not to say this getting fixed isn’t important, but it’s mostly relevant for monitors and maybe smaller TVs that you sit closer to.