I believe it is more traditionally trained in counselling rather than psychotherapy, and I said no, because I actually do think that it's nigh on impossible to unconditionally feel positive about the other all the time.
My psychotherapist works relationally, so the work is two person, she is in the therapeutic relationship, and that's different from counselling. She might sometimes feel annoyed, frustrated in our relationship, and sometimes that comes up and we might talk about it if it's relevant. That's not unconditional positivity, but it is helpful for me.

Unconditional positive regard is certainly something a practitioner could aim to hold though, but to me personally it doesn't feel completely honest or achievable, and it feels rather passive as well.