I don't think the US withdrawing under Trump is an auto loss for Ukraine no. It's simply not good either however. Russia is neither as strong nor as weak as one would think based on preconceived notions. Trump simply has nothing to offer in comparison to the facts a peace would A) let Russia finish genocide in abandoned territories and hence morally abject, B) there would be a war soon again once Putin got the chance to build up more strength because he wants all of it (plus parts of NATO) to restore his Soviet empire. The sooner fascist Russia is stopped the cheaper it is. It would have been far cheaper for the West to end the war early in 2022 by massive show of force (ideally airstrikes in Ukrainian territory), but we have pussies in charge. Europoors should indeed pay more than they do on average. There are Euro nations that have given massive support compared to GDP like Estonia/Latvia and to some extent Denmark, then there are nations that have supported a fair bit but could be doing much more like Sweden and the UK (unfortunately practically all the majors like Germany and France are in that category).
It will be interesting if the civil war in Russia comes about due to the madness of a Chechen leader. Not the way many would have bet in Vegas on it. Russia on 'brink' of 'civil war' after Chechen leader declares 'blood feud' Kadyrov declared a blood feud on two politicians from Dagestan and one from Ingushetia in a move which has sparked fears of a major interethnic conflict in Russia https://www.irishstar.com/news/us-news/ramzan-kadyrov-russia-chechnya-war-33866478
This is your reminder that Ukraine has seized more of Russia than Russia has seized of Ukraine over the past year. Russia seizes same amount of territory in one year as Ukraine did in one week in Kursk Oblast https://english.nv.ua/nation/in-one...sses-as-ukraine-in-kursk-oblast-50457939.html
The shot pattern seems possibly that of a Russian AN-94 (Avtomat Nikonova 1994). This assault weapon is unique in its ability to fire two rounds in incredibly quick succession due to its "blowback shifted pulse" system. The operator can hardly tell that in one trigger pull, two rounds have fired. It was a bit too complex so not as reliable as the AK to take off.