I would suspect that 95%+ of the time that orcs have appeared in a D&D game since the game was first released in 1974 it was in the role of villain that the player characters were supposed to fight and kill. Half-orcs have existed since the 1e PH; I don't remember the exact language from that book, but I believe that the subtext was that many if not most of them were the product of rape. Orcs were bad; they did bad things. We can debate the exact wording of the Volo book on orcs, but that clearly hadn't changed much in 42 years.
I personally don't have any problem with any DM making orcs savage, violent, or "evil" in their games, or using them in that "traditional" role. But I think that Wizards of the Coast had legitimate reasons for toning that back in the new "default" version of the game in 2024, and I think it's a valid choice to take them out of the MM now that they have appeared as a playable race in the PH. I still have the stat blocks from my 2014 books and may even use some of them in my 2024 games, since I will continue to have orc villains in my campaigns, as well as human villains, dwarf villains, etc.