I've been using Zotero + xournalpp (note the "pp") and it works quite well. I wouldn't call it perfect, but I'm happy enough. It handles pinch to zoom, swipe to

I've been using Zotero + xournalpp (note the "pp") and it works quite well. I wouldn't call it perfect, but I'm happy enough. It handles pinch to zoom, swipe to pan, and stylus for annotations.