e4 and d4 are 2 of the best and most diverse opening moves and avoiding them is like avoiding 95% of different chess positions and structures. Even if you like offbeat stuff, there is more offbeat stuff within these lines.
I keep hearing the inexplicable terror people have of "the theory". They don't want to play Sicilian because of theory. They don't want to play Queen's Gambit because of theory. I heard one guy say he doesn't play 1. e4 because there's too much theory. It's an insane phobia people have. Why do they even play chess if they can't play 1. e4?
All good opening moves are essentially known so eventually you will have to experience trying to outplay an opponent from a position that they are familiar with. If you play an inferior move just to try to throw someone off, eventually someone will just be good enough to punish the move. It's not worth playing for a surprise factor if it isn't actually good.
I think you should play whatever works for you. If you keep winning with a move then you have no reason not to play it. However, e4 and d4 are very basic, principled and instructive to the player.
Because when I first started learning chess, I actually felt like playing e4 and d4 will have many disadvantages bc my opponent (assuming they are not an idiot) will play openings that become very long and usually end in a draw in the middle game. Plus they expect it, and I want them to NOT be expecting of anything.
I usually have luck playing very unorthodox openings such as a3, Nc3, b4, f4, g3, c3, and d3.
on top of that, sometimes it transitions into common openings like the Sicilian (1.e4-c5) if I play 1.c3 - c5 2. e4. (Sicilian Alapin)
I suppose it is because I like playing for traps and tricks a lot. my go to opening is usually f4 or g3.
it ALSO might be because im a contrarian, a person who hates anything that is popular or popularized by the media or public.
I hear people say that these openings are weak, but I refuse to believe them. I actually have quite a bit of luck with these openings. It might be because I'm trying to throw people off their game or comfort zone. At the same time, I feel like because I trained up with these openings instead, trying to learn more about center pawn moves will be harder now that Im a little more advanced. (kinda as if you grew up speaking 2 languages vs being an adult wanting to speak 2 languages)
I think Id rather learn more openings with e4, d4 later when I reach a rating of 1800 or higher
(I am currently rated 1678 ELO on Lichess, but not here bc I I dont want to pay for Diamond yet. When I do I might continue on here instead)