A friend chose this, and for there to be no service / funeral tea / celebration either. This was pre-Covid, and I found it very awkward.
Although he was a close friend, he told no-one but his wife, as he knew we would tell him that WE would want to attend and celebrate in some way. Actually, his wife also found it awkward - she would have wanted a small celebration of his life. Instead, she began to arrange lunches & dinners with friends as a sort of marker, then Covid got in the way.
I don't have strong feelings about cremation alone, but I have realised that I do have strong feelings about some sort of marking of a life. We lined our main village street a few times during Covid, and at least that represented something.