The support of Belarus too makes the other Baltic countries easy targets if they fancy taking thoseSuch a tightrope. Appease to de-escalate and that may embolden him to take aim at another ex USSR country he wants back, until we get to the point he goes one too far but by then has a bigger army, more weapons.
On the other hand if you go too far with sanctions that starts to cripple the country then they may attack outwards anyhow. Although you would imagine with the resources Russia should be self sufficient unlike say NK...
But there's nothing NATO or the EU or the US or UK can do.
Russia have the power, they have China's backing to boot and let's face it, they'll go invade Taiwan next.