I've been using Aegis for a number of years, and have found nothing I don't like about it. It's a perfectly functional app, and I'm looking forward to trying out the new update!
It’s why I was a bit scared when reading the title (though the screenshot makes it look like I’ll be fine), I’ve had two open source apps make their UI/UX vastly worse recently with major updates (granted, I’m assuming some people like the changes), one was Gajim (XMPP messenger) on Desktop, and another Breathly (guided breathing) on mobile.