Hey Siv, the ones in your pic look like frutescens to me.
Despite that annuum most commonly have a peduncle declining at anthesis, some varieties have peduncles erect at anthesis (with a nodding flower) as is typical with frutescens, and the resulting pod erect, too - often leading to the "is it annuum or frutescens" question. PC-1 is an annuum variety I'm growing this season that does that and I think that feature, plus the high heat of the PC-1, are what create some confusion with people labeling it frutescens.
In your pic, though, the corolla show a greenish hue which is typical of frutescens versus the milky white common to annuum. To me, that suggests you do have a frutescens "variety" of piri piri. I have a piri piri variety growing this season that is supposed to be - and appears to be - frutescens too. The seeds were from CraftyFox. The plant looks similar to yours, but still a bit different, with the pods being smoother and longer.
Looking forward to seeing pics of yours in your glog as it continues to develop. Will be cool to compare/contrast.
BTW - I'm on-board with NECM too; I think the name piri piri or peri peri is given to multiple different varieties with the general similarities of being small, narrow, upright peppers with sharp heat.