I haven't tried putting any on my Framework 12 yet, because the ABS has this sort of rough texture that's very soft and pleasant to touch but seems like it wouldn't hold stickers well long-term. I've been putting mine on retro machines instead, like on my 900MHz HITACHI (actually Acer OEM) PⅢ: https://stickertop.art/content/images/2025/11/GWgVHXHaoAIPiB...
These days I also flatbed-scan any rare stickers before using them, to slake that FOMO “what if something better comes along and I regret using it now?” feeling.