List all existing tags with type, annotated or lighweight:
git for-each-ref refs/tags
Or to check the type of a single tag tagname:
git cat-file -t tagname
If the reported type is tag, it's an annotated tag, i.e. a git object incuding the tagger and a tag message.
If the reported type is commit, it's lightweight, i.e. just a pointer to the specified commit.
Force-synchronize tags from a remote, even if a local tag with the same tag name already exists:
git fetch origin --tags --force
— Martin Burnicki martin.burnicki@burnicki.net, last updated 2022-08-10