Russia's military is being decimated, just not at the line of contact currently. You're watching a protracted battle play out all across the world right now between Russian interests and Western interests. Some of these include:

1. Russian/Wagner (now admitted to be the same) neocolonialism in African states, most recently Niger. Within days Niger stopped trading Uranium to France. Conveniently, France is the least dependent on Russia for energy and will force the French to buy outside of Niger and then refocus on Russia.

2. The latest naval drone hit on a Russian oil tanker in the Black Sea took place well beyond the expected range of Ukrainian capability, which likely means someone else (Turkey?) helped at least get it into launch range. This coupled with the Ukrainian position that all russian ships, and all ships trading with russia are now targets in the Black Sea is also big for the area.

Currently Russians may not be dying in droves defending their positions. However, the knock on effects for russian military capacity, industrial capacity, and naval capacity are incredible. The longer they flounder and the more they commit to Ukraine, the more their traditional enemies are able to take advantage of their weakness.

If russian gas and oil cannot flow out of the black sea safely, their PMC backed interests in Africa and South American become less effective, and the corresponding governments will look elsewhere for influence/protection/trade.