I don't understand how the timed hunt works! I keep clicking "Explore Onward" but nothing new happens other than loading in a new scene!
I couldn't find any answers in the official winter fest thread about how it works or any pinned help threads :(

Just keep clicking “Explore Onward” and eventually you’ll stumble upon items or eggs. You have to click carefully to ensure you don’t miss them; items and eggs will generally be illuminated by a faint glow, and they can pop up anywhere within the scene :) It may take a bit of time to find them, but you should find stuff eventually if you keep clicking!  

Thank you so much for the info, @Roslyn !! I just managed to find an egg thanks to you! :D
They're really hard to come by, wow! Now I just have to keep clicking all day, haha

Of course! And I feel that! Sometimes it takes awhile to find one, and then other times you’ll find like three in a minute XD