Yes games are fun. I made friends, had so many memorable adventures with complete strangers, managed to keep in touch with family and close ones no matter the distances.
Honestly its about how you want to game, do you like something chill? Or something more like adventurous? How long do you see yourself playin? Something that is played on a desk or a couch? Do you like "gamey games", or do you like realism in your games?
First, you need a system if you dont have one. A system is needed to run a game.
If you are a comeplete beginner the switch by nintendo is in my experience a great onboarding experience, but that might be a bit expensive in the long run once you accumulate games. The system is a bit underpowered, but delivers such great experiences through their exclusive nintendo game titles. Great on the go, light, great for couch co-op, has online play.
Playstation and xbox are very easy to manage, and deliver more on the realism side of games while still having great gamplay first experiences. Its honestly a great balance, old ones are just as great since the old games are cheap and usually have great classics. (Warning about compatibility though). Couch gaming, has online gaming and couch+online coop.
The PC is extreme: its kinda hard to build the right machine for your needs, it can deliver whatever experience you want (it can basically "cheat" and pretend to be a playstation or switch gameboys etc through emulation, a process that is not very beginner friendly), has ALL the games (except the latest nintendo ones, except through the mentioned emulation) but can be pretty expensive if you want a high quality graphical performance to the point where you can see a cyborg sweat running down his firm and physics enhanced abs. You use launchers to go to an online store to buy games that you have to find on the internet and download, like Steam (my fav) Epic (they give a free non freemium game each week I believe!) Gog (very privacy, and consumer oriented ) and many others. Some miscreants will tell you that you can (gasp!) Pirate (arr) games, so a good system could potentially cost less in the long run! Its more of a gaming on desk unless you dont mind having a big PC next to your tv. Couch co op games are rare, but the online experience is really good.
My two cents, get minecraft if you like legos. You can also make it prettier on PC. It runs well on even old laptops. Its a great entry for anyone. If its not what you are looking for, you can look up what youd like!
Also please newcomer, do not EVER pay for the microtransactions, for they plague us all. Games should be about fun, not a tool for extracting wealth from people who just want to go on cool adventures, explore strange worlds, meet interesting characters or experience lives never lived.
I wanted to make this shorter but I get excited about theses things. Gl hf!