ref(profiling): add note for profiles stack trace rules

docs/concepts/data-management/event-grouping/stack-trace-rules.mdx

@@ -6,6 +6,22 @@ description: "Learn how to use stack trace rules to group incoming events based
 
 <Include name="only-error-issues-note.mdx" />
 
+<Note>
+A subset of stack trace rules, when defined, will also be applied to incoming profiles in order to improve the frames classification (in-app vs system).
+
+More specifically, only the rules with any of these matchers and actions (below) will be applied to profiles.
+
+Matchers allowed:
+  * `stack.abs_path`
+  * `stack.module`
+  * `stack.function`
+  * `stack.package`
+
+Actions allowed:
+  * `+app`
+  * `-app`
+</Note>
+
 If you use stack traces for grouping, the stack trace rules (previously known as _grouping enhancements_) influence the data that's fed into the grouping algorithm. These rules can be configured on a per-project basis in **[Project] > Settings > Issue Grouping > Stack Trace Rules**.
 
 Each line is a single rule; one or multiple match expressions are followed by one or multiple actions to be executed when all expressions match. All rules are executed from top to bottom on all frames in the stack trace.