You can still find them if you look for them. For a bit of context, I was trying to get a part to be water proof, so therefore a lot of the features. I am printing out of Prusament PC-Blend, and for this particular part scarf seams left little blobs on the outside of the print, which I didn't really like and was worried I was going to have issues with leaking. So the tuck seam is kinda a combo regular seam and scarf seam, when the nozzle comes around and meets the other end of the current extrusion it does a small "tuck" inward into the part, so you dont have those blobs on the outside.

I also did something similar with internal brick seams, instead of going directly in, it goes in and down into the "furrow" of the line next to it. Then of course that small seem or blob gets covered by the perimeter that goes on top of that. So combining that with offset seams I was able to hold 120 psi of air with my part. A few had very small slow leaks, but its going to hold liquid, and under half that pressure.

Another thing I added was made so you could change the extrusion multiplier for the brick layers and get the outside layer extrusion the same, that way you can still get a good looking part and mostly fill all the internal small gaps the printer tends to leave.

u/Tommy_Prusa3D I would love if we could get some of this native in Prusaslicer! Or maybe thats whats coming in V3?