The batteries are replaceable. If you are talking about having a second battery that you can lug around for when you need it, there are battery cases for this.

When people say replaceable battery they don't mean that a trained technician with specialty tools is able to replace the battery.

The EU rule doesn't necessarily mean swappable like old 90s phones, just that it is "easily" replaceable without glues and specialty tools.

2027 apparently