This is a custom wall mount for my 2nd screen Dell P2417H (simmilar models with same stand will fit as well). It's a 24" monitor with pivot stand (can adjust up/down, portrait/landscape and tilt), but it doesnt suppport vesa mount (edit: this is wrong, it does support vesa, but then cant use pivot mechanism). I wanted it on the wall so I printed 3 parts out out of PLA. One part is screwed in the wall and the other one is securing monitor in place using zip ties. 3rd part is a small shelf that is mounted underneath (with original screw for monitor base), but its there mostly to provide a flat surface between monitor and a wall.
I've been using it (2 actually) for few years in old place and I love it. It can be a bit tricky to tighten zip ties, but its only done once anyway.
I'll upload files if someone needs them
Im aware all kind of mounts exist, my setup is made from parts I had at home (including monitor ofc). I didnt want to spend 50€ or more on decent mount for 140€ monitor, but I respect that most people would just buy off the shelf product. Just sharing what I think someone might find usefull.
Strength wise, Im not worried at all, but Im clumsy enough that one monitor fell and screen broke while moving last year (RIP)