Git failed with a fatal error. refusing to merge unrelated histories visual studio code example

Example 1: fatal: refusing to merge unrelated histories

git pull origin master --allow-unrelated-histories

Example 2: fatal: refusing to merge unrelated histories

git pull origin main --allow-unrelated-histories

Example 3: fatal: refusing to merge unrelated histories

git pull origin master --allow-unrelated-histories

Example 4: git refusing to merge unrelated histories on rebase

git merge upstream/master --allow-unrelated-histories