If those were the ones in the "Obsolete" folder before, they are not available on the M1.
As an 'obsolete' effect, they notified us several versions back they were not going to update the ancient code for them. And M1's take a different code than 'normal' old-style Macs. Hence ... none of the 'obsolete' effects are or will be available on an M1.
There are a range of very good curves types in the Lumetri effect. And of course, color balancing within the Lumetri panel is pretty slick. That's what you need to use now.