It's definitely the latest hot tool on the Fediverse, it'll be great to know about it even if for some reason you decide to stick with a Lemmy instance. Although my guess is that one glance at the features and you will fall in love, switch, and stay with it forever - yes I truly believe that:-).

Like one of the absolute best features if how it allows you to have your cake and eat it too: on the Threadiverse it can be harder to find more niche content, but those Categories of Communities (oops, now called "Topics" I forgot) really help you dig deeper. A positive example is poetry, often ignored by most Lemmings, but it's one of the featured ones - e.g. Arts & Crafts @ piefed.social, then the sub-category/topic of "Arts".

e.g. if you get overwhelmed by "politics" literally EVERYWHERE, you can unsubscribe to the political communities, yet always have politics available at the touch of a button by visiting the News & Politics Topic page (subdivisions of USA, World, and RSS Feeds), this is what I mean by "having your cake" (ability to not join these communities, so that their content does not overwhelm your Subscribed feed) while also "eating it too" (ability to still read & easily find it).

As you can guess, it can take awhile to get used to what PieFed offers and fully optimize it to tailor it to your wants - but it's just fantastic that it even offers it in the first place, free, and also free of tankie philosophies as well, it's amazing!:-P