A typical therapist is almost zero-impact, you breeze through pre-prepared scripts and they nod and smile and you leave and back-pat and pay a bill. By typical, I mean in the center of the bell-curve. According to my lived experiences, and that of close friends.

A therapist with impact will sit and listen and smile, and then they'll simply repeat something you said or ask an innocent question or laugh, and this small gesture will cause a satori-like awareness of what was previously invisible to you.

I've never found a trauma-aware therapist incapable of reaching out and touching you deeply. This is the "I have rust on my resume, even if you don't code rust" of the therapist world.

[edit: If it needs to be said plainly, run like hell from any unlicensed practitioner who focuses on trauma.]