If the convenience allows you to achieve power faster or more easily compared to non-paying players, then it is pay to win. A concrete example is Path of Exile, where buying stash tabs is a convenience that massively helps with inventory management and trading. In a new Path of Exile league, players who don’t pay for all the good stash tabs are left behind in the race towards wealth or higher levels that a league represents.

Do you need more examples? Please explain rationally how this does not constitute pay to win to some degree, rather than using emotionally charged non-arguments.