British Intelligence estimates that 190 thousand men have been either killed or wounded in such a way that they will never fight again.
Source so nobody has to go looking for it.
This is a number that requires context. First of all,
it does not include any casualties suffered by Wagner Group or their prisoner battalions. Explicitly. Second, if you add in the temporarily wounded claims from the UK, you get between 240,000 and 290,000 total casualties for Russia. It is also worth comparing to other wars.
In the Vietnam War, the United States suffered 58,281 KIA and 303,644 WIA. Of the latter group, 153,303 needed hospital attention. If we assume that all of that hospital group was permanently disabled (they weren't), you would get 211584 as the US equivalent to the figure the UK is claiming for Russia. The US total figure from Vietnam is 361925.
Meaning that, if the UK is right and applying the most generous-to-Russia possible interpretation of the data, Russia is already coming close to what the US lost in Vietnam. Except that the main US involvment in Vietnam was a 9 year span from 1963 to 1972.
US casualties in WWI (1917-1918) were 116,708 KIA and 204,002 WIA. Far less than the Russian figures. The US only fought in the last year and a half of that war, but were caught in some of the most violent battles.
US casualties in WWII (1942-1945) were 407,300 KIA and 671,801 WIA. Greater than the current Russian figures, but in three years instead of two.