Well, taking a closer step in looking into the Russian invassion on Ukraine and the implications that we are currently seeing part of, Putin had an intention before the engagement of this war which is best known to him and also design an alternative as an escape route should in case things doesn't work as expected, that's why you see him being muted when asked if he has intention of invading Ukraine.
Secondly from my own perspective, i see Russia maybe trying to emulate what China did by blocking all international service providers and their satellites in China thereby building its own from within, using their own Chinese google and internet and all other social and economical services both online and in physical as within China such as vehicles, phones, home appliances etc. All were China home made and their official language is Chinese. Possibly this may be one of Putin reasons to stir up war, got disconnected from the SWIFT service providers and later come up with it own system from within and this will help them maintain more privacy and i think that's why they wanted to first conquer Ukraine which may be use as an entry point by EU, US or any other foreign country.
From my point of view Russia can never emulate what china did and they know it. First of all there is a big difference between China's and Russia's human recourses. Second reason is technologies. the reason why Russia stir up the war is that they can't give up because of domestic politics(incoming elections.) they always try to make something on the geopolitical level to have a success on the domestic level. Another reason is that Ukraine is very important for Russia to control part of the Europe(making buffers).
btw. He Putin can arrest 100 or 2000 people, but can he arrest 2 or 5 million people?
Of course, he can't, but the problem is that not even 1% of Russians are protesting against the war, which means that 99% support him or are afraid to take to the streets and show what they think of their president. The fear is logical if we know that underage children ended up behind bars just because they had anti-war banners.
I believe that for the benefit of Ukraine, but also other non-NATO countries (Sweden, Finland, Moldova) that may be hit next, sanctions must be even tougher and uncompromising - people must rebel en masse against the current regime and this is the only way to stop the war.
Now I'm watching social survey in the streets and people say that they don't want to make any comment about this political environment because of fear. Conclusion: Some people won't raise their voice unless the regime does not hurt you personally and sometimes I understand this situation, they have daughters, mothers and etc...