Amateur Tennis Technique (Process vs Winning)

I have noticed that a lot of amateurs have very janky tennis technique; they do not execute the fundamentals but will win matches at the 3.5-4.0 level. Some players even implement weird tactics: slices at random times, loopy balls, etc

Examples (Forehand grip/pancake serve, pushing the ball around the court, slicing at random times)

I think too many amateurs want to win matches, especially against mates or in club tournaments, so they end up defaulting to this, which will keep you winning matches, but ultimately you will have a much lower ceiling, and you might win a few rounds, even winning some lower-ranked tournaments, but eventually against better players you will be exposed

What I would say is, trust the process, learn proper technique even if you lose to players who, on paper, are worse for a year or more; eventually you will become more solid, and what the technique does is it will allow you to eventually reach a much higher level such as 4.5 or 5.0 or even higher than that

What I am trying to say is that more people need to trust the process vs trying too hard to win matches

(When talking about janky techniques, not talking about weird swings like Tiafoe's forehand, as he has the fundamentals)