Speaking of long variables, the Set variable block's height becomes the variable's content, regardless of its characters length. I believe it should have a text-ellipsis effect after a certain height has been reached
See below a lorem variable with 10 paragraphs or Lorem Ipsum text in it. The Set variable block is way too long visually on the Flow builder
I can't even unzoom enough for it to be displayed entirely (not that I'd want it to display entirely. A preview of it up to a certain height would be totally okay!)