While decoding support has expanded dramatically, one hold back is an efficient encoder.
From what I've read in the past, AV1 is a bit like bitcoin, you don't use CPU or GPU, but ASIC, and software encode will never be a reality as to make AV1 patent free it also became ridiculously inefficient and slow, but that is something hardware AV1 encoding should be able to solve, but until then it's not very useful