@Mathfuric @wulfnor @Blackdragon0 - you're on the list. I'll follow up with you.
And, Blackdragon0, you're right - while I've welcomed people using all kinds of additional materials since this game started, from Unearthed Arcana playtest articles to the Wild Against the Witchlight hardcover book - you can certainly play with just the 5e PHB.
Really, all a player needs is the free Basic 5e rules, which are available online. Since we started the game so early, I'm most used to the
2014 Basic Rules, but I understand they did a
revision in 2018. I wouldn't go with whatever they have on D&D Beyond now; for one thing, it's all online instead of a PDF you can download and read offline. For another thing, it's often hard to tell the difference on D&D Beyond between the 5e rules and the 5.5 rules ("D&D 2024"), and 5.5 is a different ruleset. Nobody needs that confusion.