pipx installs stores all it's files to ~/.local/pipx, but that's not what XDG spec says.

These should be probably changed to match:

• ~/.local/pipx/logs -> $XDG_STATE_HOME/pipx/logs
• ~/.local/pipx/shared -> $XDG_DATA_HOME/pipx/shared
• ~/.local/pipx/venvs -> $XDG_DATA_HOME/pipx/venvs

venvs could be $XDG_STATE_HOME/pipx/venvs, but I looked virtualenvs are stored in ~/.local/share/virtualenvs.

when implementing, then for safe migration purposes, pipx should use old paths if it finds the parent directory (~/.local/pipx) present, otherwise use the new standards confirming paths.