Hello, thanks for the positive feedback! The latest release (1.0.12) includes tooltips in icon-only mode!
Regarding the Twitter / X window, at the moment the plugin uses one consistent behavior for all sharing services: opening the share URL in a new browser tab/window depending on the visitor’s browser settings.
We don’t currently plan to add custom popup dimensions per network, as that would make the behavior less predictable and harder to maintain across providers and browsers.
If you prefer a popup-style frame, you may be able to customize this with your theme or a small JavaScript snippet targeting the Twitter/X button specifically.