Before you started developing games, how many "indie" games did you buy? Was this a thing to do? How did you notice them?
"Indie" is a mark of quality to boast on Steam. Why? Because indie games are great? No. Because there are so many indie games and everyone and their dog can make a simple game in a couple days in one of those game engines. It is like all those people singing under the shower and showing up for auditions of those casting shows.
But being professional, as in: being able to live of the activity, is hard, very hard. If an indie developer made it to this stage, it is a thing to boast about.
It is similar to how there are millions of youtubers. But how many of them do you know? A hundred maybe?
So to answer your question with another question: Why should you get noticed? There are literally thousands upon thousands of other indiehobby developers trying the very same thing.
In my opinion, "indie" is used wrong as a term, here on itch. Non professionals use it to describe themselves. But indie still means professional game developer that is currently not working for a major studio. It does not mean doodling games as a hobby and waiting to be discovered. And the waiting is the key word here. You need marketing to get noticed. Within itch that is luck based. All you can do, is make your stuff easily findable for the people that might look for it. Like tagging it, have appealing descriptions for your target audience, having good description that google will find and so on. But it still is luck based and you should do marketing outside of itch. A good approach might be to cater to some nieche audience that would seek you out and thus notice you. But competing against all the other devs, well, they try the same as you and if they made a game, their skills are probably not worse than yours.
And an even better approach would be to make games that are fun for you to make. Unless you do be a real developer with years of education of doing your work, it is a hobby. Not a profession where you are currently out of paying work.