The problem with audio is really neither Linux fault, nor something you can fix by fixing Linux. It is the ecosystem in overall...
I have Bitwig Studio also in my Linux desktop and I draft tracks sometimes with it. It works fine and I have U-he plugins (my favourite plugin company by far). It is nice in a way that options are not countless, and it renders previews fast with i9-13990k. Bitwig's EQ is pretty usable and I have Presswerk, which is pretty decent and versatile bus compressor. Regardless that there are ways to use Windows native plugins I don't mix because smooth user experience is pretty crucial to maintain when making music, to the level that you rather discard all the possible plugins.
In software synths, U-he is by far the best in detail and performance so it is not that huge loss *for drafting*. I would not fully finish a track in Linux but I can get a productivity boost from a limited environment with a equivalent user experience as in macOS (because I use only stuff that "officially" is meant to work in Linux).
To add something more in favour of Linux, Pipewire is an amazing project and Wim Taymans is truly one of a kind programmer :-) Even in macOS you need 3rd party solutions to stream audio/video between the network of apps. In Pipewire this all is built into the stack by architecture.
If I e.g. want to sample Youtube to Bitwig I just route PulseAudio (== pipewire-pulse) to Bitwig with qpwgraph. I'm not expert on Pipewire but I believe that once applications support pipewire directly instead of PA, the granularity will increase fully to per application level but this is already very useful for sampling different sources. Pipewire needs to mature but it is definitely right things done right, as far as I'm considered.
I think also that clap (royalty free plugin format) and dawproject file format are signs of new winds in the audio industry that will also move Linux audio forward (slowly) :-) Clap has been already by quite many DAW's and more recent dawproject format is already in Bitwig and Studio One. It allows to export project from one daw and load it to another daw in the language that they can both interpret.
Like here is a draft of track that i drafted in Linux last week. It is definitely not finished but I can get by far with limited set of tools :-) At this point I would switch to macOS.