I too am sitting in a similar place.
I use a Mac and a PC. While they are mostly the same, there are some differences.
My MacBook Pro is almost 9 years old and I'm considering a replacement.
At that time I expect I will abandon BIAB win and crossgrade to BIAB Mac.

I wish to purchase a brand spanking new computer, not a refurb or used model.
I'm probably not going to do anything for at least 6 months, maybe longer

The new Apple Silicon machines have just hit the street. The reviews have been mostly positive but not entirely.
Changing the CPU chipset is a significant issue. I would like for the dust to clear a bit.

BIAB Mac does not run on the latest version of the MAC os. That is a hard no go to me.
I expect when it does run, it won't be without problems.
Not interested in spending a lot of $$$ to be a guinea pig.
I'll give it some time and avoid as much of the problem as possible.

A new batch of Apple Silicon MacBook Pro's are expected out by the end of the year.
For me that's a likely time to upgrade.

But that's just me.

biab2025(Mac) Latest Build
Mac OS (Latest)
Apple Mac Mini M2 pro 32GB Ram
Logic Pro (latest or pretty close)
Heddon Super Spook XT (Mullet)