TL;DR: you now need to pay a $20/month “meta premium” subscription to use a 100% offline feature that runs on your own malware-ridden smartglasses.
If you don’t subscribe, you can use the feature that is already included in the hardware that you already paid for 3 hours each month
The now-paywalled feature boosts the voice of the speaker in front of you, something that even low-end ANC earphones are doing now. 5 minutes of free usage per day is basically nothing.
You might not notice your OIS is borked until you go on vacation and suddenly can’t get certain pictures to focus anymore. Excessive vibration and drops can definitely damage it. Though I imagine just a basic rubberized mount would help mitigate that a lot.