If the CPU is fast enough you can decode VP9 in software, too.
Hardware VP9 support is the better solution, though.
Intel's Core i5 and i7 should be fast enough for 1080p60.
that's a lot for most of the chromebooks that usually used.
@Hepcat I have a Chromebook with Intel Core m3-6Y30 CPU, 4GB of RAM and run flawlessly at max setting playing RDR2.