welcome to the community! As a quick suggestion, whenever troubleshooting issues, try to remove any noise - AI tools included - as this kind of noise only creates unwanted friction.

Also, when troubleshooting GIT (or any tool), it's always helpful to include any configs you might have in place and GIT version. Moreover, as a widely used OSS, it is also useful to tell which version of GIT you got and where did you get that binary from.

Using the GIT manual and without any further information, I suspect you have auto-sign enabled. If this is the case, then your tags will be annotated by default.