There are really good vector graphics application available for Linux. The powerful but somehow also aged Inkscape, the free Gravit and Figma.
Ranger is an interesting alternative to NerdTree on Vim. I’ve found it easier and more intuitive to navigate the directories and execute commands on them than nerdtree, but it lacks the possibility to show the working tree directly on the active buffer. It’s as well vim-motion-based and light weight.