Looks like the gui_hooks.top_toolbar_did_init_links issue was introduced with 4d7e23. Due to the execution order between main.AnkiQt.setupMainWindow and main.AnkiQt.setupAddons, the hook only operated correctly thanks to the draw call in deckbrowser.DeckBrowser.show (so it was on shaky grounds to begin with). Not sure what the best fix here is – whether to move the first draw() call after all add-ons are initialized (could generate some bad visuals while Anki is loading) or draw() for a second time as before (not ideal performance-wise).