As I understand it, planning new, grid-scale nuclear power plants takes 10-20 years. While this isn’t a reason not to start that process now, it does mean something needs to fill the demand gap until the nuke plants (and other clean sources) come online to displace the dirty generation, or demand has to be artificially held down, through usage regulation or techniques like rolling blackouts, all of which I would imagine is pretty unpalatable.
It looks like the png is getting word wrapped. Line spacing is so large that the png on the second line is getting pushed into the space of the icon below, and the icon below is given a higher Z value, so it goes over it. The different font has a different letter width and can influence the line spacing by being taller than the original font.
See if you can find an option to reduce line spacing or an option to increase icon spacing (vertical or horizontal). I would expect these to be advanced settings though. Iirc, most Linux desktops don’t use ellipses on long names, like some other operating systems (macOS iirc).