Wayland works fine in modern machines. On X.org security, if you plan to something sensible in the CLI, just switch into an VT with Termux/Screen, do your work

Wayland works fine in modern machines. On X.org security, if you plan to something sensible in the CLI, just switch into an VT with Termux/Screen, do your work here and then restore your session under X. Or use UXTerm with the keyboard lock option from the menus, where your input it's bound to the XTerm window and nothing else can read or snoop it. In theory, but I didn't spawn 'xev' to test it. Thus, head to an VT, there are good Unicode fonts (Unifont for instance) for basic needs. And with fbpdf2, fbi and mpv (among SDL_VIDEODRIVER set to fbcon/drm) you can spawn framebuffer/DRM based image/video and PDF viewers in a hurry.