Answer first
Why am I the bottleneck in my company?
You are the bottleneck when decisions still need your approval before work can move. The first move is not another speech about ownership. Transfer one recurring decision with a boundary, an escalation rule, and permission not to quietly reverse it.
Start with the decision that came back twice this week. Name who should own it, where the limit sits, when it must escalate, and what you will stop reversing.
Good people cannot carry authority they were never given. A title does not move the decision. A boundary does.
The hard part is usually not naming the new owner of the decision. The hard part is letting the normal call stand when you would have chosen differently.