Hey @random,
I have created an issue to fix the confusion caused by the use of newlines in formulas, as some frontend components are not displaying them properly. You can find it here New lines in formula are not shown in the cell (#2197) · Issues · Baserow / baserow · GitLab
In the meantime, you can add newlines in the formula editor by typing Shift+Enter.
For now, you can see that the newlines are visible in the formula editor and in the row modal (the one that is open if you click the spacebar after selecting one cell or if you click the little icon at the beginning of the row.
Hope this helps,
davide