Earlier on in this war a lot of people (including myself) were expecting Ukraine would run out fuel and supplies because of the constant barrage of missiles on those targets.
However, it's clear Ukraine still has more than enough to conduct the recent offensives. I suppose Ukraine is getting their fuel supplies as well from the West? What's baffling is Russia seems to have slacked off a lot going after these targets, and are not attacking the transit points in Western Ukraine at all.
Now onto Ukraine, I hate to say a single weapon changed the conflict but it does seem like ever since Ukraine got HIMARS it's been Russia reacting to Ukrainian initiative. With the big help of NATO ISR and pro-Ukraine locals given intel on the ground, HIMARS has basically turned into a very effective strategic weapon systematically destroying the Russian munition depots, command posts, etc. It's range is not that impressive for us who are familiar with PLA systems or even the Russian Tornado-S, but it's accuracy + mobility (shoot and scoot it's full salvo of 6 in under a minute) is very troublesome for Russia who is lacking in UCAVs and lacking full control of Ukrainian skies. HIMARS will continue to be a big problem now that the US is equipping Ukraine with not just the M31, but also the M30A1 tungsten alloy airburst type warhead which Ukraine purportedly used against the Russians at Lyman. In the future it could be equipped with even longer ranged guided rockets.
What Russia needs is to disrupt logistics, just as the Ukrainians are attempting to by attacking the Crimean bridge. Perhaps even an incursion from Belarus into Western Ukraine as a distraction. Slowing Ukraine's momentum for Russia should be a priority but for some reason Russia is really passive. It may be that a lot of their warplanes are worn out by now and also because Ukraine's AD is still strong. But if they can't do it by air or if they're tight on cruise missiles, there's other options like sabotage which we don't really see happening either. Perhaps Ukraine's SBU is really good at countering this. Russia can also try launching massed Shahed-136s from Belarus.
The 25k Russian troops west of Kherson are most likely quite worn out from fighting in outnumbered situations constantly, and the difficult logistics situation with the bottlenecks at the Dnieper crossings. If Ukraine masses enough forces and achieves another breakthrough, those 25k will be in serious danger of being unable to retreat. These are also some of the better Russian troops, so to lose them would be a decisive blow imo. As embarrassing and painful as it is to consider for Russia, from a military standpoint they may want to seriously consider leaving Kherson and pre-emptively withdrawing east of the Dnieper.