The Russians have a lot of atgms, but they dont really have top-attack versions. They may have announced some, but they dont seem to have used any so far, likely because they are not fully developed.
These vehicles, like nearly all other western aid, will travel from the Polish border on busy roads. Thats Ukraine’s lifeline. Russia has not been able to interdict that flow of military and civilan support. If they had been able to they would have won by now.
The Russians are stalemated due to a bunch of interlocking circumstances. They can’t use most of their Air Force effectively is a big one.
The question now is whether Ukraine has or will have the ability to break through on the Zaporozhia front and take Melitopol or Mariupol. That will cut the Russian front in half and leave the Russians in a logistics mess on the east bank of the Dneiper, and in Crimea. It will also achieve the bulk of Ukrainian war aims. This remains to be seen.
Crimea is and always has been what this is about. Putin is losing his grasp on Crimea for many reasons
You sir win a chicken dinner!