This may not apply to you, but the way I consume YouTube is by turning off history and subscribing to the creators I want via RSS. That way I seldom even remember Shorts exist; they simply do not appear for me.
If that wouldn’t work for you, consider removing the app and accessing YouTube via the browser. I would be surprised it there’s not an extension or blocker which can disable those.
If that wouldn’t work for you, consider removing the app and accessing YouTube via the browser. I would be surprised it there’s not an extension or blocker which can disable those.