I must have become a prisoner of my own habits ....
Over the years I have got used to the desktop to such an extent that I consider the laptop to be an immediate solution. Even now, as my home system has grown to include Apple mobile devices (mine and my wives), the desktop is the centerpiece of the system.
Of course, when I can enjoy Handoff functions, it becomes only natural that I should replace my linux desktop with a Mac mini or an iMac. However, the cost of such a transition is too high for me, especially now that Apple is about to move away from Intel processors - the future is becoming too uncertain.
Entry-level MBA is too expensive for what it offers and I would have to keep my old linux desktop server as a server anyway, and replace it with a NAS server after his death (Synology, Qnap or Raspberry ...). Apart from that, the MBA is too small a screen.
Now I think I think I'm just replacing my old eye-straining monitor with something modern. Desktop will stay old, and replace it with something newer in the future. With linux but also the dual boot option, if I had to use Windows, for reasons more important than iTunes.
As for iTunes - I will try to live without it, maybe I will switch to VLC entirely, because the occasional music management in the default iOS / iPadOS application is the only reason. Numbers and Pages have a browser version, you can work without Safari on the desktop ... I will do iPhone / iPad backups on an enlarged disk space.
What do you think?
I also know that in my case, the choice of computer comes second to the decision about what the ecosystem should look like.
Best regards!