Ok, then try to run a pre-compiled macOS M1 compatible application on your new Sequoia system, such as https://github.com/rochus-keller/oberonsystem3/ or https://github.com/rochus-keller/leancreator/. Requires quite some tricks so that at least some applications run without Apple's benedictions, but the tricks don't work for all such applications; and as it looks, they will also remove the last remaining work-arounds in future.
> "Go to Privacy & Security and click "Open anyway"
Thanks. Unfortunately this no longer works on sequoia; you first have to run "spctl --global-disable" in a terminal and then - within a few seconds - go to Privacy & Security and select the new option in the popup menu (which was not available before). See also https://news.ycombinator.com/item?id=41184553. That's what I meant by "tricks". And even though there are apps which still didn't work. But fortunately I still have a Mac with an older OS version which I'm not going to upgrade.
Very simple. Some of the applications work with the "console/allow all" trick (which is a tedious procedure, but hey, I'm just a dumb customer), others still don't work but crash and give strange errors that some stuff could not be accessed. But none works immediately. On systems older than Sequoia, everything works as expected (I just have to start them via the context Open menu, which is ok).
There are quite many given that I only started using Sequoia a few weeks ago, and all happen only on Sequoia, not on my other macOS versions. A nasty one I discovered last week is e.g. that I have to delete and re-add an application (which generates key events for the operating system) to Privacy/Accessibility each time I re-compile it, otherwise the events are simply swallowed without any error. If you happen to be an Apple representative, we can continue by email.
Ok, then try to run a pre-compiled macOS M1 compatible application on your new Sequoia system, such as https://github.com/rochus-keller/oberonsystem3/ or https://github.com/rochus-keller/leancreator/. Requires quite some tricks so that at least some applications run without Apple's benedictions, but the tricks don't work for all such applications; and as it looks, they will also remove the last remaining work-arounds in future.