Gameplay wise... I quite enjoy it.
Not as much as Fifa 10/11 days, but other iterations like Fifa 18 I thought were utterly appalling, and that's being generous. I just can't think of a word to describe how much I hated that game; nothing but rage-inducing exploits and game-breaking glitches. Genuinely one of the worst games I've ever played.
20 doesn't appear to be the most challenging offline experience, which is a shame. The AI players will actually run at you, which is great to see, but on the flip side they're slow to defend and regularly mess up some REALLY simple passes, even on Ultimate. The Career Mode glitch though is inexcusable. I didn't know that it's been a thing for a few years as it's been a long time since I played Fifa Career mode, but it's not surprising it's been there a while seeing as other issues haven't been fixed for quite literally 10 YEARS.
This game brings a dilemma though - I had no intentions on buying this for online play, I gave up on that waste of space a few year ago, but friends I used to play Pro Clubs with are really enjoying it, and I could see how this style of gameplay would really, really suit controlling just a single player.
Shame there's no cross-play. A massive 130 people were playing this mode on PC

Do I really want to dust the cobwebs off the old xbox?
I'll probably wait, give it as a little as a week or two and people will very, very quickly work out all the exploits and bullshit that ruins Fifa every year.