I wonder if BBS told you the number of the law that Putin signed?
The President of Russia has immunity under article 91 of the Constitution of the Russian Federation. This Constitution was adopted in 1993. The first Constitution of Russia after the collapse of the USSR also contained this norm. However, so it is in many countries, as far as I know.
Immunity while in office and for acts while in office, yes, but if the reports are to be believed Putin has made changes which mean he and his family have lifetime immunity from arrest, prosecution for acts before, during and after his presidency. He's also changed it so he can remain president until 2036 so it's unlikely to be necessary to rely on his lifetime' immunity'.
Perhaps not as trustworthy as the BBC, but RT seems to feel it's true.
https://www.rt.com/russia/510483-putin-law-immunity-presidents/
By the way, Trump is the only US President in recent years who has not started a single war... Isn't that right?
Seems to be, yes. Perhaps the single noteworthy achievement of his term but he seems to be doing his best to leave a nascent war for Biden.
The Constitution has only one line about the inviolability of the President. But the Constitution is not a procedural norm. All procedures for applying the norms of the Constitution are described by laws. Probably, there are some changes, I do not think that RT will fantasize about this.
But I don't know about them, and I'm not really interested. Probably, other countries are more interested in this.
I can tell you from the observation inside: Putin does have a lot of popular support, it's true. Even the obvious failures of his domestic policy do not affect, even harsh changes, for example, raising the retirement age did not reduce trust, although he promised never to raise the retirement age and cheated. Well, other things are already visible to everyone - a lot of chatter and promises that are not fulfilled.
People probably understand and feel that there can't be a perfect system. Most of the people I talk to are unhappy with a lot of things, but they are willing to adapt to anything to ensure sustainability.
I think we should not exaggerate the role of Putin's personality. Yes, he's a tough politician. But no one can decide everything on their own. It is a public voice for people with great influence and significant resources. I am sure that Putin's departure and the appearance of a new person will not make any serious changes. This is just a public show.
In Russia, there are 2 wings of power. The liberals who broke up the country, reduced it to poverty, and seized liquid resources mainly to sell them. These people are ready to sell everything, they are interested in the country only as a commodity for sale. For some reason I don't understand, they didn't end up in prison, but stayed in goverment. And the second wing is a power unit. These people are not going to sell anything, they are interested in their own strong country. And they don't want anything taken away from them by force or extortion.
In any case, ordinary people are the least interested in power and people will be squeezed as much as possible.