Four lubes, four application points, and one rule that prevents most mistakes: over-lubing is irreversible, under-lubing is not. Here is the practical reference.
Lube moves the sound and feel of a switch in ways nothing else in the build can. It also chews up a Saturday and ruins switches when applied with the enthusiasm the rabbit-hole crowd recommends. Here is the version that earns its keep.
A stabilizer has to be loose enough to slide and tight enough to stay quiet, and those two requirements contradict each other at three separate interfaces. Every rattle, tick, and clunk on a spacebar is one of those interfaces losing the argument.
Small pads of polyurethane foam cut and wedged inside the switch housing itself — not under the PCB, not behind it, not under the keycap. The Holee mod works at a smaller scale than every other foam mod in the hobby, and it costs proportionally more time.
Stabilizers are the most acoustically influential component most builders treat as an afterthought. Understanding what they are and why they fail changes every build that follows.
Most builders lube their switches meticulously and treat stabilizers as an afterthought. The rattle that survives a full stab lube job almost always traces back to one overlooked contact point.