I can only really help you with more Switch games, as I don’t use Steam. I’ve pretty much only played video games on the Switch since I had to work from home, since it’s an entirely separate device from the computer on which I worked.
Steamworld Dig 1 & 2 are both really good, though somewhat short compared to Hollow Knight, and are something of a Diablo meets Metroidvania, to the point where the original Diablo music from Tristam was basically recreated as the music for an area in the sequel. There’s a definite home base from which you sally forth to mine and fight and eventually when your bags are full take your goodies back to sell and buy stat upgrades, while you find new movement and attack powers in various caves as you dig that tend to have a bit of a puzzle associated with them. Hollow Knight has multiple vendors at various locations, and there’s less of a need to “return to town” with your Geo, only an eventual sense that you should before you end up somewhere you can’t get back to without dying again and losing all your Geo; Steamworld Dig has all its vendors right next to each other in a safe space that you can teleport back to every so often, and you have a limited amount of space to carry ore that you end up selling for cash in town.
I can’t really recommend other Steamworld games. I played through a good bit of Steamworld Heist, but it’s a completely different style of game - a sidescrolling tactical team turn-based shooter. I guess it’s like X-Com turned sideways? It didn’t really hold my interest enough to get me to finish it even though I’m probably at least halfway through. Steamworld Quest I thought I’d love, having a deck of cards from which you pulled your moves in an RPG, but I absolutely hated the execution. I played a couple hours and got a sense that the card game aspect wasn’t really used at all; I didn’t encounter anything that let you draw additional cards or discard cards as a cost or effect, and the way cards are costed means you have to include a lot of basic attacks or risk being unable to do anything, and that’s really boring.
Indie games that are not particularly like what you played, but are really good, include two by the same guy (I don’t remember his name), Papers Please (this isn’t actually on Switch; I got it on GOG - I assume it’s on Steam) and Return of the Obra Dinn. They’re both sorta puzzle games, though the first is more a bureaucratic job (and oppressive regime) simulator, while the mechanics of the latter are quite inventive even though you don’t need to fully grasp everything the creator intended you to rely on because guessing is possible once you get down to a few people left to solve for.
The one high profile Metroidvania (that I played and finished) I don’t see on your list is Axiom Verge. Not nearly as beautiful as Hollow Knight or Ori, it’s a fairly interesting game that owes a lot to Super Metroid but has its own set of mechanics, a few of which I found to be extremely inventive. There’s a lot of backstory that’s available to discover apparently given the number of slots available for notes spread around the game, but I was content with “beating” it and moving on without finding everything.
Another Metroidvania series on Switch is Guacamelee (1 & 2), though I’ve yet to get through the first one; it’s not as bad as the non-Dig Steamworld games, but I just kinda didn’t feel like playing it through to the end after taking some time off after i got probably 80% through. The Shantae series (which at least is somewhat Metroidvania-like I hear) has some games on Switch as well, though I’ve only bought one of them, I don’t remember which one, and I only played about 10 minutes. Not that I hated it; I was just testing it out after buying it on sale and haven’t had time to come back and seriously get into it.