Blaine
Cis-Het Oppressor
I'm surprised this game isn't more talked about here on the codex, it's incline and fantastic
There's not an awful lot to meaningfully discuss. Metroid/Castlevania-style games tend to be one long reel of story and gameplay spoilers, which most players will want to avoid; there aren't generally complex dialogue trees, meaningful C&C, or such like; and although character customization in Hollow Knight is above-average for the genre due to the high number and wide variety of charms, you don't have to create "builds" per se, nor is the customization as nuanced as a full-on cRPG. It's not going to generate dozens or hundreds of pages of build-based discussion as is the case in the Underrail thread, for example.
Metroidvanias are at their heart still relatively straightforward action platformers, but with enough added complexity, progression, freedom of exploration, and challenge to make them meatier experiences than their progenitors.