Russia continues to have losses in Ukraine

 ISW:

Russian forces have reportedly lost at least five divisions’ worth of armored vehicles and tanks in Pokrovsk Raion since beginning their offensive operation to seize Avdiivka in October 2023 and during intensified Russian offensive operations in western Donetsk Oblast in Summer 2024. An open-source X (formerly Twitter) user tracking visually confirmed Russian vehicle and equipment losses in Ukraine stated on October 4 that the user has confirmed that Russian forces have lost 1,830 pieces of heavy equipment in Pokrovsk Raion since October 9, 2023.[1] The X user stated that Russian forces have lost a total of 539 tanks (roughly a division and a half's worth of Russian tanks) and 1,020 infantry fighting vehicles (roughly four to five mechanized infantry divisions’ worth of vehicles) during offensive operations in Pokrovsk Raion and specified that Ukrainian forces destroyed 381 of the 539 Russian tanks and 835 of the 1,020 armored vehicles. The X user noted that Russian forces have also lost 26 infantry mobility vehicles, 22 multiple launch rocket systems (MLRS), 11 towed artillery systems, and 92 unarmored trucks. The X user noted that he confirmed that Russian forces lost 25 tanks and 59 armored vehicles (roughly two battalions' worth of mechanized equipment) in Pokrovsk Raion since September 6, 2024. Russian forces launched an intensified four-month-long offensive operation to seize Avdiivka in October 2023 and later continued assaults west of Avdiivka and west and southwest of Donetsk City in spring and summer 2024, and the user's data should reflect Russian vehicle losses accrued during these offensive efforts.[2] The X user’s assessment based on visually confirmed vehicle losses is likely conservative given that not all Russian vehicle losses are visually documented. The actual number of Russian vehicle losses in the Pokrovsk area is likely higher than reported.

The Russian military command may not be willing or able to accept the current scale and rate of vehicle loss in the coming months and years given the constraints in Russia's defense industrial production, limits to Russia’s Soviet-era vehicle stockpiles, and the Russian military's failure to achieve operationally significant territorial advances through mechanized maneuver. Russian forces expended a significant number of armored vehicles during the first weeks of their offensive effort to seize Avdiivka in October 2023 and later limited their armored vehicle usage while fighting within Avdiivka's administrative boundaries....
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Russia is already relying on Soviet-era weapon systems having lost much of their modern equipment in the early days of the war in Ukraine.  Russia is clearly a much weaker militarily than it was before the war and its conventional forces make it improbable that it could sustain a conventional war with NATO forces. 

Russia started this war because it feared that Ukraine would join NATO.  That was clearly a miscalculation that has exposed its weaknesses.