vterm flickers a lot with any busier TUI. Claude Code sucks in vterm. I'd also really look forward to using libghostty to try an alternative to vterm in emacs.
My issues revolve around evil:
- motions stop at the terminal "line" (e.g. press "0": it doesn't move to the beginning of the line)
- moving from normal to insert mode, or running commands like "r" from normal mode often breaks. Sometimes, a completely different character is replaced elsewhere in the line.
- there's often a two-three second lag between entering insert mode from normal mode.