https://www.ign.com/articles/fallout-76-smashes-steam-player-record-amid-fallout-tv-show-success
The success of Prime Video’s Fallout TV show has spilled over into the video games upon which it is based, boosting player numbers in even decades old titles.
It's fun for what it is. It has a very positive community. Lower level players are always gifted high level armor and weapons from vets when they see them. If you do decide to play, you can do most of the game and quests solo. That's how I did it and it felt more or less like a regular fallout game. You should do the events even though you're not prepared for them. High level players will make it so you pretty much don't have to do anything and that's where you'll get your highest level rewards.
The card perk system is different and overwhelming at first. Basically good some good builds and pick one or two that fit your play style. Then you'll know what to focus on.
My buddy for me into it a few years ago. It was fun for what it was, but it's not GOTY or anything.