I love hot biomes

This datapack changes temperature noise value to the highest so Minecraft generates only hottest biomes.

Biomes shown in the list weren't chosen manually, these are the biomes Minecraft generates when temperature is the highest.

List of biomes that can spawn in this world

Ocean biomes

Mushroom Fields, Warm Ocean

Coast biomes

Stony Shore

River biomes

River

Regular biomes

Windswept Savanna, Desert, Eroded Badlands, Badlands, Wooded Badlands, Mangrove Swamp

Cave biomes

Lush Caves, Dripstone Caves, Sulfur Caves, Deep Dark

The datapack also changes or deletes some advancements so all vanilla advancements are achievable (26.2 only feature).

Changes to advancements

Nether tab

Changed advancements

How Did We Get Here? (Conduit Power, Mining Fatigue effects are not needed)

Adventure tab

Deleted advancements

Heart Transplanter

Is It a Bird?

Sound of Music

Changed advancements

Monsters Hunted (Creaking, Elder Guardian, Guardian are not needed)

Smithing with Style (Vex, Tide, Wayfinder armor trims are not needed)

Adventuring Time (all biomes that don't generate are not needed)

Husbandry tab

Deleted advancements

Whatever Floats Your Goat!

The Whole Pack

Changed advancements

Two by Two (Fox, Goat, Llama, Ocelot, Panda, Turtle are not needed)

A Balanced Diet (Sweet Berries are not needed)

Fully compatible with all of my worldgen datapacks here excluding I love frozen biomes for obvious reasons. Advancements changes aren't compatible though.