MtG is vast and the jargon alone can be pretty confusing (I still don’t know it all and can’t recognize a lot of cards that experts name drop).
What I recommend to newer players is to find a legendary card that speaks to them and build a deck around that using online tools like EDHRec and EDHWiki which can directly tell you the best combos and cards that synergize well with it. If you like greek mythology for example you could start with the Theros sets which are inspired by greek myth.
There are also tons of pre-constructed decks which you can upgrade and experiment with which is basically how I learned to make decks from scratch. It’s thankfully never been easier to play the game with comrades totally for free using Moxfield and screensharing; you can theoretically use any card ever printed (including the infamous One Ring printing) and use Spelltable to host the game.