Just as a pedantic aside, people often use Venn diagram when they mean Euler diagram. A Venn diagram always has the overlapping circles and use shading or labeling describe the set relation. Euler diagrams let the circles describe the relation so two non intersecting sets in a Venn diagram might share the left circle green, the right blue and leave the intersection blank or grey. An Euler diagram will have two disjoint circles.
> Anyone who cares about security will be using App Attest or the Google store equivalent.
Why? I rarely have security objectives where remote attention would help, and it has a huge impact on user freedom. For B2C attestation is just an evil captcha.