We've got a high-efficiency side-loading washer, on a wood floor. The machine is vibrating, but we don't know if it's a normal level or it's too much and will cause damage over time.
Most of the time, there is a small amount of vibration that seems normal. See video here (note, unmute the video for audio)
Occasionally though, the shaking is stronger (see here, again unmute for audio). In rare instances, it can be shaking more than this as well.
There's various advice about what to do if your washer is shaking, but I've not been able to find any details about how much vibration is actually a problem? Do we need to fix this?