I don't think that is a valid statement . Filters will fundamentally change the result on film; e.g. a polariser, used excessively, will do what? If used in moderation, what else will it do? And what effect if used in shade? The traps are many and numerous.
Understanding slide film and colour starts with the basics of exposing the film without filters in many different situations, especially contrasty light to understand latitude. Basics first. Remember the OP is moving from benign negative film to transparency. It's not a trick-free circus. As skills and knowledge progress, then introduce filters as required. I emphasised taking notes of each exposure to facilitate understanding.
I noticed an earlier post re this: my experience using graduated ND filters on evaluative/multi-pattern meters especially is to avoid this trap with those particular meter types, or switch to CWA only.