iOS 17.4: Safari Extensions broken?

We’ve received a lot of user complains after the latest iOS 17.4 update. Our Safari extension does not work as reliably as it used to be (sometimes it’s just not loaded, or very slowly).

Is this a known issue?

Are any workarounds available?

On iOS 17.5 the problem seems to be fixed, but I’m still wondering for a workaround because we dont know how long until 17.5 is released.