DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.
Terminal fullscreen behavior is more conservative and easier to override. Claude Code now recognizes CLAUDE_CODE_DISABLE_ALTERNATE_SCREEN as an explicit opt-out, and it auto-disables fullscreen on Windows-over-SSH ConPTY sessions unless CLAUDE_CODE_NO_FLICKER=1 is set.
Evidence
Fullscreen environment handling (search for "CLAUDE_CODE_DISABLE_ALTERNATE_SCREEN" and "fullscreen disabled: Windows over SSH")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.