I always hear this "TRT for life" thing but every bodybuilder I've known on gear has had no problem going on/off on a blast-and-cruise with post-cycle therapy.
Post-cycle therapy will take longer if you're taking exogenous testosterone for longer, but it's definitely not a 'for life'/'impossible' thing if you've been on TRT for a few years and decide to stop. It's just fearmongering.