AV1 encoding uses software encoding instead of hardware, even though the hardware supports it

I'm using an RTX 5090 FE, and this is the case for myself as well. I get a popup when attempting to stream in AV1 despite having the Prefer Hardware setting selected in the advanced settings. Canary Desktop 2026.1018.223341, Web 2026.1018.223341, Windows 11 10.0.26200 (x64), Electron 44.4.1, Chrome 152.0.7977.78, Node 24.21.0, Locale en-US