How to permanently remove unwanted, persisting icons from dock?

Hi there,

I really like my dock to be very minimal and clean, but I find that I am having to remove the same icons from my dock (App Store, News, Podcasts, Apple TV) upon each restart. Is there a way to permanently remove these icons? I have no use for them on the dock and it makes it harder to visually locate and click on the apps I access on a frequent basis (Chrome, Spotify, and FB Messenger in particular).

I attached screenshot of 'before restart', 'after restart', and the option that show when I right-click on one of them.

To clarify, I understand how to remove icons from my dock (by right-clicking, dragging to trash can icons, etc.) - my question is how to permanently remove them so that they don't appear again upon the next computer restart. I have also tried to search through the dock and users & groups settings to fix this issue (screenshots attached). Any help is very appreciated!

Before restart (preferred state)

After restart (bloated state - unwanted icons)

Available options for unwanted icon

Dock & Menu Bar settings status

Users & Groups setting status