This year, in our 16-year-old solid house, we had a broken water pipe in the kitchen. The wall was opened up, the pipe repaired, and afterwards the wall was dried and closed again; it was all quite uncomplicated and you can't see anything anymore. I don't want to know how it would have looked now if we had a wooden house with mineral wool insulation? It's the same with drilled holes in the wall. Most prefabricated wooden houses have a vapor barrier behind the wood-based panel or drywall. I pierce this vapor barrier every time I drill a hole in the wall somewhere, and over the years, several holes can accumulate. For me, prefabricated houses only have possible disadvantages but no decisive advantages.
Best regards
Sabine