Yeah, none of the regulars here are professionals in the industry. But what most of us have is a working knowledge of good husbandry practices (whether we follow them or not is another discussion) and how to setup and maintain our own outdoor water gardens. Understanding circulation in the pond, various filter types/the best for your individual goals for your pond, needs of the aquatic life you are trying to keep and how to establish a food chain/web. To the OP understand the mechanisms and science behind what makes a water feature of any type work.
Personally, because of my line of work ( one of my jobs is building marsh creations/living shorelines in the Chesepeake Bay Area). I understand (but always learning) how To use plants as a filter for a pond, which ones I want to use for aesthetics and which ones are the workhorses that are huge nutrient consumers.
Really,digging into the weeds on this stuff is pretty much putting in the time to learn from the pros like Aquascape going to workshops or watching a lot of videos/podcasts and if you don’t have a natural eye for design and how rocks, wood can come together to look natural, you can train and develop that skill, It will definitely be worth your time.