The Sims 4: Vampires Review (Arthur Kenichi Condino Odaguiri)
this game (with its all DLCs) might have more than 1000 bugs, and if so, the list (which you can see in the game's official forums) still keeps growing every Update and DLC release. See official forums so you can have an idea of how many: https://forums.ea.com/category/the-sims-4-en/ideas/the-sims-4-bug-reports-en
Also, this (vanilla) game's community might be one of the most toxic and vain ones. And childish too. I'm supposing this statement based on how the game's DLCs and content are boring and dull when they are based on the community's feedback, compared to very good content created by Sims game modders.
Another thing I'd like to add is that there are too many technical issues not resolved nor responded to by the community moderators or the support team. This also applies to the bugs. The feeling it gives is that there are only players in the forums, because the moderators do not show themselves too much. It looks as if they are not participating in getting bug information to send to the devs, because they rarely answer: so it gives the sensation you are talking to a blank wall when you reach for help. See forums, you'll notice there are a lot of people asking for help and many of them are not provided with solutions: https://forums.ea.com/category/the-sims-4-en/discussions/the-sims-4-technical-issues-pc-en
Here's the part of the game that I feel frustrated the most: a horrible problem of the game is the usage of F.O.M.O. and marketing to gain players. Why not give more content to the game like waves in Sulani so we can surf with Dolphins, fully loaded neighbourhood (or at least a cache system for the current neighbourhood so it's faster to visit a close house) instead of load screen dependant for each single house or apartment, bring cats and dogs a work/career system and make them controllable, add Get To Work version of default game jobs/careers, or start adding a multiplayer system like there's one in the cellphone version? I mean, there are so many fun components that could be added, even if it's a "DLC of a DLC". No, their conclusion to bring more players was: add an F.O.M.O. Timed Event system with some exclusive items that are bonded to your account only if you play during that time.
If they can add the Burglar, they can do a lot more too!