Multiple Landscape Actors per WP level possible and a good idea?

Have you ever tried to use multiple different Landscapes in UE5 with world partition levels?

I have an idea for a side project, and I’m thinking about the tech setup for it. It features “floating islands”, each representing a different Biome, and Id love to tap into landscape functionality for each of them. Basically, I’m wanting each large island (think about 250 000 m² each) to be a different landscape, and to be able to sculpt, paint layers etc.. Layer Data, Blend data would be different for each actor.

Sure, it might bring a performance overhead since the engine is loading different large actors but aside from that I’m not entirely sure if there is something to look out for.

I read somewhere in the past (like 2 or 3 years ago) that UE5 WP doesn’t like it when there’s more than one Landscape in the level, anyone made experiences on this front?

Maybe theyve fixed or patched that in the meantime. Most of their samples and examples also usually only feature one Landscape, and theyre using a single unified landscape for their 64km² map sample in Project Titan, with 10s of Biomes too.

Are there any downsides to it if I do so?