Wow... Thanks Jon! Lots of work to accomplish a working backup, and a couple of interesting workarounds for sure...
Does make me maybe a little more confident to get out on the bleeding edge... definitely going to have to upgrade my external drives and get the latest version of Techtool Pro if I get an M1 Mac. But reading through that thread, there seems to be no one method of actually making a bootable cloned drive drive on an M1 Mac, so I may have to resort to the most recent Intel Mac I can afford if I want to be able to have a cloned, bootable backup.
But, Catalina should be an OS that will go for quite a few years unless the kinks that presently exist in Big Sur can be addressed by SuperDuper and CCC, and and the newer Intel machines should be able to run whatever OS Apple throws at us for quite a while.
Kinda reminds me of when Apple put nothing but Thunderbolt 3 ports on the Macbook Pros in 2016. That was a hardware decision, but it was way out in front of most of the hardware available at the time. In a similar fashion, The M1 Macs and Big Sur seem to be a little ahead of their time with software issues.
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