I found this video that is interesting in two ways. Firstly it shows how funny looking these close fights often are, you often see people shooting at each other barely 10 metres away and both missing completely. But I guess stress does that and we don't know how well they are trained.
Secondly in this video a grenade is thrown right next to two Ukrainians and they both seem to barely be effected by it and they run of at the end. This often seems to be the case with all kinds of ordinance in this war, even artillery does not seem to have the effect that you would think it would.