Also, I have never used the MacOS Active Trader Pro app, but I downloaded it to my M1 and it did not work, and online old Macbook users say it works and people with M1s say it has problems on M1.
So my experience is look to see what apps support M1 and ARM. I can tell you that Rosetta does not work for everything.
Apps were not working, and I put Rosetta in, and now some apps work and some don't. So this is another thing to look into.
(Side point - my work laptop is not an M1 and was force updated to 11.6.2 a few months ago. Now when the screen is unused for a few minutes and the computer sleeps or hibernates or whatever, I can't log back in any more half the time and have to shut down and reboot)