How to: Which aspects of shell and terminal does Powerlevel10k affect?
Powerlevel10k defines prompt and nothing else. It sets [prompt-related options](
  http://zsh.sourceforge.net/Doc/Release/Options.html#Prompting), and parameters `PS1` and `RPS1`.

![Prompt Highlight](
  https://raw.githubusercontent.com/romkatv/powerlevel10k-media/master/prompt-highlight.png)

Everything within the highlighted areas on the screenshot is produced by Powerlevel10k.
Powerlevel10k has no control over the terminal content or colors outside these areas.

Powerlevel10k does not affect:

- Terminal window/tab title.
- Colors used by `ls`.
- The behavior of `git` command.
- The content and style of
Tab
completions.
- Command line colors (syntax highlighting, autosuggestions, etc.).
- Key bindings.
- Aliases.
- Prompt parameters other than `PS1` and `RPS1`.
- Zsh options other than those [related to prompt](
    http://zsh.sourceforge.net/Doc/Release/Options.html#Prompting).
- The set of available commands. Powerlevel10k does not install any new commands
  with the only exception of `p10k`.