⚠ Warning:

Any uncommitted local change to tracked files will be lost, even if staged.

But any local file that's not tracked by Git will not be affected.

First, update all origin/<branch> refs to latest:

git fetch --all

Backup your current branch (e.g. main):

git branch backup-main

Jump to the latest commit on origin/main and checkout those files:

git reset --hard origin/main

Explanation:

git fetch downloads the latest from remote without trying to merge or rebase anything.

git reset resets the master branch to what you just fetched. The --hard option changes all the files in your working tree to match the files in origin/main.

Maintain current local commits

^[*]: It's worth noting that it is possible to maintain current local commits by creating a branch from main before resetting:

git checkout main
git branch new-branch-to-save-current-commits
git fetch --all
git reset --hard origin/main

After this, all of the old commits will be kept in new-branch-to-save-current-commits.

Uncommitted changes

Uncommitted changes, even if staged (with git add), will be lost. Make sure to stash or commit anything you need. For example, run the following:

git stash

And later (after git reset), reapply these uncommitted changes:

git stash pop

Which may create merge conflicts.