Not necessarily. Huge additions without matching deletions often happen during restructurings like vendorizing dependencies, importing external packages, generating bindings, or migrating private repos into a monorepo. In these cases new code canbbe introduced to repository and there will be no corresponding deletions in commit history.

I’ve did similar restructurings myself, eg. Making automatically generated resources static

It’s obviously some kind of code reorganization, restructuring or reformating, don’t be paranoid

Obviously an app removing ads from YouTube wouldn’t be published to the official store