In the case of Linux, that issue is solely because of non-upstreamed drivers. With that, it can be a first class citizen just like any other processor.

It's second class on Windows because it doesn't support game DRM and generally performs worse for the price than an x86 laptop. About the thing it really has going for it is better battery life. Using Linux doesn't really change either of those problems, though it does get you away from the mess that is Windows 11.

1st party native software support is high and 3rd party native software support is higher than Linux. Both have feature complete userspace emulation layers for the 3rd party part (largely game focused) Windows doesn't need Proton for that. Both can run open source apps natively.