Redirect rule not applied during client-side navigation in Single-Page Application

[Wicke2d]

Version 1.15.5
Using Firefox 140.0.4

Scheme: http/https
Host: www.youtube.com
Path: /feed/subscriptions
Action: Redirect: https://www.youtube.com/feed/subscriptions?flow=1

Intent is a simple query parameter append.
This rule does trigger upon full page load to path, but does not trigger upon navigating to path from within YouTube itself.