PuTTY and mintty
That means that:
- neither of ConEmu terminal customization options may be used, these applications have their own configuration and canvas;
- neither (almost) hotkey configured in ConEmu may be used.
To avoid limitations it would be better to use real console applications (bash, zsh, ssh, etc.) from your favorite POSIX distro (cygwin, msys, wsl).
ConEmu creates by default Tasks for all found installations, just use them.