I don't see it that way, there does not seem to be much appetite in Russia to expand beyond Crimea and Donbas.
The Moscow Times which is the only real objective independent english language publication on Russia IMHO has had many articles lately on the buildup of Russian forces:
https://www.themoscowtimes.com/2021/...ting-up-a73457
https://www.themoscowtimes.com/2021/...-tactic-a73461
https://www.themoscowtimes.com/2021/...nto-war-a73480
https://www.themoscowtimes.com/2021/...or-says-a73500
The main takeaway is that the buildup is probably not a sign of an imminent invasion.