Is quote I found while looking into this. It seems like they're not opening up completely, they're just removing a bunch of rules. There is still talk of large events possibly needing proof of vacination.
This information is super new and what actually happens and how they actually do it is yet to be fully confirmed as far as I can tell.
Edit: Also important they have 77 people in ICU in the entire country. Where as Berlin alone has 186.
There might be mandated face masks for guests at hospitals and elder care in addition to proof of vaccination or negative tests. At these places only.
All other restrictions are being lifted.
There will still be targeted restrictions, such as in the elder care. Time will tell if that will be enough and if the health care system will manage.