New Mac arm user here.
Replaced a good Windows machine (Ryzen 5? 32 Gb) and I have a late intel Mac and a Linux workstation (6 core Ryzen 5, 32 Gb).
Obviously the Mac is newer. But wow. It's faster even on things that CPU shouldn't matter, like going through a remote samba mount through our corporate VPN.
- Much faster than my intel Mac
- Faster than my Windows
- Haven't noticed any improvements over my Linux machines, but with my current job I no longer get to use them much for desktop (unfortunately).
Of course, while I love my Debian setup, boot up is long on my workstation; screensaver/sleep/wake up is a nightmare on my entertainment box (my fault, but common!). The Mac just sleeps/wakes up with no problems.
The Mac (smallest air) is also by far the best laptop Ive ever had from a mobility POV. Immediate start up, long battery, decent enough keyboard (but If rather sacrifice for a longer keypress)
Part of it is that the data pipelines in the Mac are far more efficient with its soldered memory and enhanced buses. You would have to use something like Halo Strix on the PC side see similar performance upticks at a somewhat affordable price bracket. Things like Samba/VPN mounting should not matter much (unless your mac network interface is significantly better), but you might see a general snappiness improvement. Heavy compute tasks will be a give and take with modern PC hardware, but Apple is still the king of efficiency.
I still use an M1 MB Air for work mostly docked... the machine is insane for what it can still do, it sips power and has a perfect stability track record for me. I also have a Halo Strix machine that is the first machine that I can run linux and feel like I'm getting a "mac like" experience with virtually no compromises.