The reason why it's his first time on the front line is also clear: Putin has been literally hunted by the intelligence services of Ukraine, Britain, the USA, and another thirty US-controlled intelligence agencies for three years. Apparently, when Trump became president, he ordered the withdrawal of the directive to prepare terrorist attacks against Putin. Russian President Putin is a very brave man. To make it clear: Putin not being on the front for three years is much more dangerous than Zelensky visiting the front 20 times. Because Russia does not engage in terrorism, but terrorism is being waged against Russia.
In the world, Putin's appearance in uniform is seen as an indirect response to the ceasefire proposal: No!