TRT doesn't cure PFS. It only relieves it to an extent while you're on it, if you react fine to it. But TRT itself is a drawback long term because it will shutdown your natural testosterone and progesterone production, as the testes make both. In PFS, this is a big problem because the studies show low levels of progesterone and its metabolites 5a-Dihydroprogesterone and Allopregnanolone in the brain that bind to GABA receptors. The synthesis of those steroids in the brain environment were shutdown and the brain is riding on fumes from what your testes are producing. You shut that down too, you'll feel worse. Additionally, you'd be risking infertility, since FSH tanks too and is needed to stimulate sperm production.
Speaking as someone who has run TRT before, it's not a magic cure to this.