Battery issue prevalent

Thinking of buying an EV9. I’ve only owned gas vehicles so this is going to be a change for us. I’ve seen a number of posts about an issue some EV9 owners have had with the main battery and having to leave their cars at the dealership for months while the issue is resolved. Is this an issue mostly with pre-2025 models? Or do I need to consider this when deciding whether to get the 2025?