It just looks that Russians themselves don't want to die in the war but otherwise supported it.
I was reading vk.com and generally there was 1 post or comment against the war in Ukraine for every 10 or 20 posts pro-war.
Now the ratio is 1 post against the draft versus 1 post pro-draft.
You see the change? Russians mostly supported the war and those few people who were ready to protest against the war were simply overwhelmed and suppressed by those who supported it. Some people live in bubble where they see that everybody around them thinks similarly to them but that doesn't seem to be the whole reality in Russia.
I am not convinced about the resistance against covid restrictions in Russia. Russia had its own share of lockdowns and restrictions. It wasn't as free as Sweden. It avoided some most stupid ones like vaccine mandates. But the UK also didn't have vaccine mandates. Was it due to people actively resisting? Possibly, but I don't think you had something so active as Canadian convoy in February 2022. It can rather be explained that the authorities were not really very eager to introduce those measures in the first place. When they encountered even lukewarm resistance, they gave up because vaccine mandates were not effective at all.
Look, Russia had abysmal vaccination rates among elderly (the only measure that really mattered). That shows the failure of public health institutions. The UK (no mandates) and Canada (strong mandates) both had very good vaccine coverage among elderly – which shows that regardless of mandates, it is possible to ensure high vaccination uptake among risk groups. Russia doesn't have that and mandates wouldn't have helped anyway. No wonder authorities gave up so quickly even with a moderate resistance to those measures.