Generally with stronger France, smaller Austria and stronger Russia, plus completely different European dynamics things are bound to go more, or less differently even with Greater Germany, let alone smaller option.If ITTL Germany is smaller and less aggressive quite a few things may go differently.
Well, honestly, this is somewhat of a distraction: I’m still trying to figure out how to deal with the coming issue of the Russian revolutionaries without dramatically changing personalities of the Russian rulers and certain social attitudes: it is increasingly tempting to get anachronistic and use post-1917 experience but where to get the right people?…
I mean just by Alexei surviving and succeeding Peter, plus Russia being more advanced country that started to industrialize earlier you should have different personalities and society.
You can't really compare Russia of otl 1860s to ITTL Russia of 1860s as otl Russia industrialized in late 1800s while it ITTL counterpart started the process in early 1800s.
This means that Russia should already be experiencing problems it's OTL counterpart experienced down the line, which means that it's ruler's should be aware of it and in this case it's Alex II and III that will be dealing with those problems.
As for people with personalities? Given that Russia is in better shape than otl shouldn't it have educated people that can deal with the problem? Just pull out someone from the future timeline.
Here's an interesting though, Stalin being born a Russian and joining Russian bureaucracy , or secret police seems like interesting scenario, especially if you pair him with Alex the III reign. They could purge a lot of people together.