Yes. Russia is totally on defense, and losing, as Prigozhin, Girkin, Volyamedia and Greyzone have said. It's military is capable of no offensive operations for 4 months since being bled in Bakhmut and a failed winter offensive that culminated. It has no reserves left to plug holes in the front, using elite airborne VDV troops in trench lines and embarking on a second genocidal mobilization of Buryats, Tuvans, Yakuts, Tatars, Chechens, Dagestanis, Komys, Bashkiris, etc. Russia is where Germany was in August 1918 and in Normandy in mid July 1944.
https://nadinbrzezinski.medium.com/breakthrough-in-robotyne-a82290538ec9.

Define "stopping Russia".

My definition: Russia fails to reach any of its political and strategic objectives as voiced by Putin in his 7/2021 screed (Ukraine has no separate or sovereign existence), by Putin mouthpieces on Russia Media Monitor and Ria Novosti (Timofey Sergeytsev) and https://www.justsecurity.org/81789/russias-eliminationist-rhetoric-against-ukraine-a-collection/.

You can point to none that have been realized.

Putin's and his puppet Trump’s last hope is the 2024 election. They're both hanging on for that. The 14th amendment and two Black women judges should take care of that. Poetic justice.