Before I even begin to comment on the new members of your herb family, the best wishes for the year 2025 (and beyond) are sailing across the Atlantic Ocean from Croatia.
The plants need to be repotted urgently. This allows them to develop more fully in a larger container. This will work even better, however, if you use a fork (or something similar) to free the compressed root balls from the tangle so that the roots can get used to the new soil as quickly as possible.
Sage, marjoram and thyme do not like to grow in a climate that is too warm in the winter. They are also not very sensitive to frost, and they need time to regenerate during the winter months. Even my rosemary can withstand temperatures as low as -10 degrees Celsius.
So true, breaking up the roots would indeed help. But I fear putting the plant into shock by doing that.. Not all plants like their roots broken up like that.. maybe they would have been fine, maybe not.. never know.
It will be interesting to see if the marjoram takes outdoors.. It may be just warm enough for them to survive in the winter here.
No plant will be happy with roots crammed into a container that is too small, I can assure you. Usually, the 'freed' roots are also shortened (cut back) before the plant is replanted.
There's no need for concern about your aromatic herbs. With the exception of basil, all the others can cope quite well with a colder climate.