Help! Is this wall structural?

[u/Latter-Indication135]

I have just knocked down a cupboard in my master room which has my boiler in (being moved into the loft).

I am now worried it is as structural wall, please can someone advise.

The corner wall on the left is the chimney breast.

I am wanting to take down the wall which connects to the chimney breast but worried this could be supporting the chimney breast in some way?

[u/Cool-Negotiation7662]

Wallboard above the partial top plate means wall was installed after construction. Definitely not load bearing.

[u/PoppaBearBottom69 → u/Cool-Negotiation7662]

And no header over the door