From reports cited by the BBC, it appears that Russian generals may have a proportionally higher mortality rate than their troops:
"Ukraine's defence ministry says another Russian general, Lt Gen Yakov Rezantsev, was killed in a strike near the southern city of Kherson.
Rezantsev was the commander of Russia's 49th combined army.
A western official said he was the seventh general to die in Ukraine, and the second lieutenant general - the highest rank officer reportedly killed.
It is thought that low morale among Russian troops has forced senior officers closer to the front line." (our emphasis)
That's a phenomenal number, given the war is a little more than a month old. Apparently, in addition to low morale, the Russian army is hampered by incompetent and inexperienced lower and mid-level officers, thus the generals are forced to move closer to the front to direct attacks. It doesn't help that their communications system is a joke, with them having to use commercial lines to communicate. According to a Ukrainian official, the Ukrainian Army has an intelligence team focused on targeting high-level Russian officers.
We wonder how this is going down inside the Russian high command, who are looking at Ukraine as a meat grinder for their rank. It certainly won't endear Russian thug Vladimir Putin to them.