Spring Festival in Budapest

Yes

Depends on what you are interested ins://btf.hu/about_us

I was there at the tail end of it last April and visited several times, lots of interesting hand-crafted items and the food options were excellent and cheap. I can’t think of anything to avoid, except maybe the rooster testicle stew...It’s not all that big, stalls clustered around Vorosmarty ter, plenty of seating. Allow maybe 1-2 hours at most.

I think I'll avoid that too....thank you

Here is the correct web link for the festival https://btf.hu/events