Not sure how much it helps, but I just run all my Apple devices in "Lockdown mode", don't install apps (use Safari), and try to mostly use Safari in private sandboxed mode.
Are you at an above average risk of being targeted by a state level threat actor?
This makes sense if you’re a human-rights journalist working in a dangerous country, with the threat of state-level actors looking to compromise you.
If you’re not then this seems quite paranoid, bordering on LARPing.