Well, given that at the same time as Russia dropped 100 bombs, once, Israel dropped 400+ (and in a much more heavilly populated area, so killing about 10s or maybe even 100 times more civilians), every night, it's hardly surprising that at least the people who were against the Russian invasion of Ukraine as a question of principle (the strong attacking the weak, the murdering of innocent civilians for merelly having been born were they were born, the calous disregard for people's lives and so on) are focused were a far more extreme case of it is happenning.
That in Palestine, the US and some of the largest European nations, unlike in Ukraine, actually support the strong who are murdering innocent civilians in massive numbers, just makes those who are natural supporters of victims to be even more focused on Palestine since the "great" powers in that case have not sided with the main victims but instead are giving cover and even monetary and military support to the side commiting a genocide, making such people feel their support is even more needed in the face of such "coalition of the strong".
Meanwhile the crowd who are driven to take sides for reasons other than principle or morality are also being guided to focus on Palestine, the nationalists in nations which support one of the sides because their nation's leader or favored politician is supporting that side, whilst the ones who mindlessly follow the baiting of the more propagandistic news and social media because the propaganda in most of those newspapers, TV channels and social networks is now entirelly focused on Palestine.
In summary, the crowd driven by morals and principles are focused where the greatest underdogs are being victimized the most and, worse, that is supported by the powerful, and the rest are either looking at the same because that's were their national or political leaders point them to or because pretty much the entirety of the propaganda in the most manipulated newsmedia or social media is about that.
It's almost paradoxical that Ukraine's success at stopping Russia (thus avoiding the kind of mass civilian casualties there would be in something like a siege of Kiyv) thanks to the help of nations that are now supporting a side doing the invasion an mass killings, means that their plight is merelly a fraction of that of the Palestinians hence they eyes of the World are turned to the latter.