A couple of things are worth noting. D&D is the most popular system in the states, and despite what some folks say it *can be* cumbersome to learn on the first go around. That said, you can pick up the basics really fast so long as you're not playing a spellcaster, and almost any other game you'd choose to play has a better than average chance of being simpler and easier to learn. D&D as your first ttrpg is sort of like learning how to drive on a stick-shift. If you learn it, any other game will be easier, and while it's not impossible to learn, it likely will take a session or two for it all to gel.
Also, one of the fastest ways to determine a group who is worth playing with is how they treat a sincerely interested new player. Like, if you show up and want to make a character and someone lights up like you have just made their day, that is a green flag. Some folks, I dare say many, really enjoy teaching new players.
It's anecdotal, but everyone who I've ever played with or taught ttrpgs who I'm still in contact with either still plays to this day (or tries to if they can't find a group) or runs their own games. Literally 100%. It has a staggeringly high conversion rate if you can give folks a good taste.
Half of my current home group are people who I ran for in high school who came back and started gaming with me again over a decade and a half later.