Interestingly, if you output only one field of the dataframe it works:
df['Case1']['Formula1']
𝑥−1
However, when the whole dataframe is taken into account you cannot use Latex objects. It is enough to use only LaTeX formulas between $$ characters:
my_dict = {'Case1':{'Formula1':'$$x^{-1}$$', 'Formula2':'$$x^2$$'},
'Case2':{'Formula1':'$$x^{-2}$$', 'Formula2':'$$x^4$$'}}
df = pd.DataFrame(my_dict)
display(df.transpose())
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