I used a combination of Inkscape and Penpot, I still tend to do most of my graphics etc in Inkscape but then I do the layout in Penpot, maybe some cropping etc. I did lack the ability to perspective distortion/transformation for the first two screenshots that I needed to apply on these 2 iPhone mockups. I even tried to do perspective distortion in figma but unsuccessfully. I ended up using some other tools for that.
So from this project it is clear to me that a proper perspective distortion tool would unlock a lot of possibilities in my designs. Currently Inkscape has that ability for paths but not for images. I hope penpot gets the ability to do both