That's been the weakness I found in privacy education spaces and communities. When a friend wants to learn, I link them resources to start and read but I have to also give them with a caveat: everyone's threat model is different. It's good to know what tools are available, basic OPSEC, and use as needed depending where your current activities fall on the privacy spectrum.
I also warn them of the maximalists who will welcome a complete noob normie with "Alright sell your PC, you're gonna use TailsOS as a daily driver now and your phone will have no apps." It turns them off.
A lot of advice is too broad and there's now enough about threat modeling (though it's getting better). Gotta meet people where they are and sometimes, improvement will look different based on the subjects.
For some, running everything self hosted and not using any social media is a win. For others, simply tweaking some privacy settings and being aware they can turn off things like Location services and Bluetooth when not in use, is also a win.
Baby steps, so it's a more digestible step in the right direction and way of thinking.
As for me, like you, I'm also a compartmentalizer. I've tried many setups obsessively, reinstalled my phone and machine OS a dozen times in the past years, and compartmentalizing activities and identities is the only way that keeps me sane. In control of what I share and aware of data collection while keeping the private private and keeping a foot in that space to keep up with tools to enable privacy.