Currently, if you right click an untamed wolf or an untamed cat while holding a name tag, you get a message saying, "Sorry, you cannot rename this mob." It would be fun to have named wolves and wild cats. In the case of wild cats, it would also keep them from despawning, as they will currently despawn even if leashed to a fence post due to a confirmed bug in Minecraft Java Edition 1.19.2: https://bugs.mojang.com/browse/MC-248092. Note that untamed wolves and cats have slightly different behaviors than their tamed versions, and so they open up new gameplay options. Default behavior for Minecraft is to allow these mobs to be named. Thanks for considering this suggestion! ~Mafro
Yes I agree! I would love to have some untamed cats in my greenhouse, I've had them despawn on me in the past
Im not sure if this will work BUT I know, In the nether you can name mobs if you use your offhand, Might be worth trying