The outcomes of the three cases have established two important points.
Firstly, that gender-critical beliefs can be protected from discrimination under the Equality Act 2010.
Secondly, however, that the ways in which such beliefs manifest themselves in behaviour might not be protected. It depends on what those behaviours are and how they impact on the legal rights of others not to be discriminated against on the basis of their sex or gender reassignment.
Employers need to both avoid discrimination against people because of gender-critical beliefs and also avoid discrimination on the basis of gender reassignment.
Full summary at commonslibrary.parliament.uk/employment-tribunal-rulings-on-gender-critical-beliefs-in-the-workplace/