[Question] Unclear when default transaction is committed

[SRNissen]

Document Link

https://gorm.io/docs/transactions.html

GORM perform write (create/update/delete) operations run inside a transaction to ensure data consistency, you can disable it during initialization if it is not required

Your Question

Assuming I do not disable the default transaction, when does the commit happen?

E.g.:

func main() {
    db, err := gorm.Open(sqlserver.Open("connectionString"), &gorm.Config{})
    if err != nil { panic("!") }
    u := User{}
    db.Create(&u)
    ?
}

Does this change get commited? If so - when?

Do I need to call .Commit() manually? If so - when?

Expected answer