It is the same Russia that has invaded or taken control of territories of few neighboring countries, like Chechnya, Georgia and Moldova and has invaded Ukraine multiple times since 2014. The same Russia that has doubled their military spending just in last four years.
The same Russia whose top government officials repeatedly and publicly threaten to attack and annex other neighboring countries.
There are quite a few tiny neighboring NATO countries that Russia could easily annex in a day or few (and it has threatened to do it too) and then see how NATO would respond, if at all.