Our experience is restricted to Nikon DSLRs: D300, D300S, D700, and D500. The D500 so far works without flaws, and it is indeed made in Thailand. But we did not yet take it to really rugged environments. I do hope of course, that Nikon can improve their quality onto the level they had in the 1960s-90s - we have a collection of e.g. FM-2's that never let us down, even not in Siberian winter. The D300 was highly praised and needed an exchange of the mirror box at only 80.000 actuations, my old from the same time 7D still works, an artist friend uses it. Plus, all symbols were wiped off most used D300's buttons after a few years, not with the 7D (not an issue but fits to its lower quality). The D300S then lost a part of button functions after a tour in heavy rain, despite my wife tried to protect it much more as I did with my 5D3. I didn't care much about the water, and the 5D3 didn't have any failures... The D300S never recovered completely, even after years. I can extend this list, but this would be as boring as this experience is annoying for us.
Btw I watch a wildlife German documentary just at the moment. There they showed a Canon 5D3 (I guess) with an EF 24-70mm that was stolen from another German photographer three months before, by a lion, the photographer used it remotely. Now the wildlife filmers found it by accident, lying on lens' front element in the dirt, overcast with dust and dirty. They started the camera - and it worked! They could see that first the lion, later an elephant played with it and hit the release button. I am really no fanboy, but this story didn't surprise me. I had some severe accidents with my Canon gear, but it never stopped working. My oldest frequently used EF lens is a 25 years old EF 500mm F/4.5 which must have now done some Millions of shots. It is battered like an old weapon but works perfectly.