In 1.21.111, your last played world are always takes priority over your friends world and always positioned in the first slot of the world list, but since 1.21.120 that's no longer the case, since now your friends world will takes priority over your last played world, which is an issue if you have a lot of friends since your last played world will be pushed even further.
Steps to reproduce:
Open Play screen
Ask your friend's to join their world, and then wait
Observe that your last played world is now in the second slot
Expected results:
Your last played world takes priority over your friends world, and always positioned in the first slot of the world list.
Observed results:
Your friends world takes priority over your last played world.
Thank you for your report!
After consideration, the issue is being closed as Working as Intended.
Please note, that mechanics of the game may change between updates.
Things such as graphics, sounds, world creation, biomes, redstone, villagers, and animals may not work the same in current versions.
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