There hadn't been any hybrid war until Western world gifted those regions.
This war showed russia is paper tiger with it's helpless army. Russians can just bully weak minorities and weak nations.
This war showed Russia is a weak country.
One of the most interesting things over the years was the hype behind putin being a genius, even though it was pointed out how many stupid moves he made in Syria against Turkiye. The bombing of Turkish troops back in 2020 was probably a prime example of how short sighted Putin's actions were. That action basically forced the army into Idlib which saved the current government who rules Syria today, the government that would expel Russia from Syria. All those threats, all those flag games with the PKK, in the end for Russia were a complete and total failure.
Putins mindset is we go in and kill some Turks, this will cause them to retreat and Russia can reclaim the last rebel pocket for Assad. Similar mindset to Ukraine, invade it, 24 hours later claim that you are ready to accept Ukraine's surrender, here we are years later and there is no way out for Russia. I honestly the get impression that Putin sees one option and when that fails he just looks to ride it out.
But really the writing was on the wall that Russia had become a stagnant/regressive power when some EW, cheap drones were able to cause mass havoc against Russian systems in Syria, Libya, Ukraine and Azerbaijan.