The headline is basically this.
Conflict measuring contests are for historians. Who knows where the Ukrainian conflict leads. The Ukraine conflict is having the larger impact on the world-at-large. Basing the title of ‘largest conflict’ on death counts, it’s notably that we’re talking about starvation deaths as a result of the Ethiopian civil war, but there was no effort to quantify the resultant starvation deaths from the world grain supply disruption of the Ukraine war.
I don’t think the Ukraine war is overshadowing the Tigray war: Ethiopia was getting relatively low news air time before the Ukraine war accelerated earlier this year. Not to say that’s fine, but I just don’t think comparing them in this way adds anything meaningful.
The world will react to the Ukraine war largely through the lens of how the respective countries view Russia. The world will react to the Tigray war largely hoping to prevent death and bring back regional stability. That’s why the first has seen floods of foreign involvement and the latter has had far less of that (bar immediate neighbours of course).