I would say both armies look mostly distinctive still. Just maybe some Ushankas in Wehrmacht use, a soviet MG42 clone is probably their leading light machine gun, probably camo smocks in red army and NKVD use that are influenced by Wehrmacht/SS designs. The Soviet helmets will probably follow the direction to the SSh36, as in continuing influence from the German stahlhelm, since nazis rampaging through all of their west not happening would prevent such a design from becoming taboo.Very interesting and perhaps my use of the word "slower" was incorrect, what I really meant is that the focus of tank development might take a different (alternate) direction ITTL than our own but things would straighten out a little later due to the changing picture of warfare in the post-WWII era.
I'm really curious to see what happened to Germany in the post war years and a German influenced Russia would be very interesting as well, the image of soldiers in WWII era German combat uniforms with post WWII Soviet weapons is an interesting one.
I mean Finnish, Chinese retained their traditions yet took a lot of German influence. Yet do to the massive industrial might and long established military tradition of Russia, shit like Ushankas, PPsh 41s will end up in the Wehrmacht stocks. After all, the Germans in this timeline where shown to have used soviet multiple rocket launchers against allied armies if I recall correctly.
Actually a good analogue for Soviet forces in this timeline, they will probably look somewhat like the Bulgarian army. Why? Bulgarian army was heavily influenced by Tsarist Russian doctrine (as was the soviet union.) Their uniforms even took many Tsarist elements. Yet they used a lot of German gear or German influenced gear in the war.
Classic post war soviet weapons are likely going to be butterflied, and that probably includes household ones such as the AK47. Soviet German co operation changed a lot, the Soviet Union likely jointly produced STG 44 with Germany, and due to that there won't be a major reason to design the AK47 post war when the STG 44 can fill Democratic Russia's needs. (within due time, it will be replaced of course, but not by a Kalishnikov, probably by something else entirely.