In what way? I know of the Ultra chip issue, bluetooth issue on M1 and of some programs/apps that remain unoptimised or even problematic. Is there something with the bigger picture? (I'm asking out of genuine curiosity)
I was more referring to their intended roadmap for ARM which was a 2-year transition planned pre-COVID. The supply chain chaos which still has an impact on Apple today has simply meant that they are behind, like many other companies.