Oh, so that’s a different question. Right now, the plugin only uses the deactivation hook, which indeed deletes the plugin settings on deactivation rather uninstall. I’ll see if I can add the uninstall process in a future version and move the option deleting over to that.
If you’re debugging, it should be sufficient to only disable certain options that might be related to your problem. Unbloater only activates existing hooks and filters, so it’s very unlikely to be interfering with other plugins if a specific option isn’t activated (e.g. if the Application Passwords options are off, no other option will likely interfer with plugins that use Application Passwords).
If you’d still like to be able to preserve the options during deactivation in the current version, you’d need to be comfortable with tinkering with database options. The settings are stored in a single option (unbloater_settings) in wp_options that you can easily copy before deactivation and later paste back in.