>> do they have thumb safeties too?
No
>> The loaded chamber indicator on the Glock is almost impossible to notice.
I don’t have any problem figuring out at a glance if a round is chambered. The Glock chambered-round indicator is tactile, too; you can easily tell in the dark by feeling it with your trigger finger (if you’re right handed, anyhow).
The LCI on the Taurus is much more obvious both visibly and palpably. The LCI on the Glock is barely noticeable, especially to a beginner. There’s really no arguing this.