Discord.js получить пользователя по ID
client.users.cache.find(user => user.id === 'USER-ID')
Aci
client.users.cache.find(user => user.id === 'USER-ID')
client.users.cache.find(user => user.username == 'USERMAME')
// You can use .get() with an ID, or find() with a parameter to compare
client.users.cache.get('ID')
client.users.cache.find(user => user.username === "Specific username")
client.users.cache.find(user => user.tag === "Specific username#1234")
client.users.cache.get("ID")