Unfortunately this is lemmy.ml, which means the place is crawling with tankies. The admins of this instance are openly tankies, and I've seen so many braindead stupid takes from people who can't see anything beyond "USA bad".
Lemmy.world, lemmy.ee, and beehaw.org are options. Note that Beehaw is really aiming for a nice, curated community, so that effects the availability of content.
The instances you join might still federate with lemmygrad.ml or lemmy.ml, but thankfully you can block garbage instances like those and exploding heads.
Idk where you got this from, but Ukraine won in Kyiv, Kherson and Kharkiv. Currently the front moves very slowly towards Russia. No, the offensive isn‘t a huge success and I would even consider it a failure, but the fact that Ukraine can even start an offensive is proving that the weapon deliveries are working.
No doubt it's complicated, but some key factors are
Availability of ammunition (cluster munitions may help here)
Destroying artillery before advancing (the daily numbers have been looking good)
Removing mines before advancing
Disabling logistics (e.g. strikes on bridges, warehouses)
Waiting for a lucky opportunity
It doesn't cost them much to do things slowly, but keeping the Kremlin on its toes and embarrassed is good. The longer Ukraine holds on, the more equipment they get, like F-16s, Abrams, and ATACMS.