InstallTrigger to be deprecated

I’m sure you already know this, but Lighthouse is flagging this as a warning:

InstallTrigger is deprecated and will be removed in the future.?awb.min.js.

More than anything, I’m curious as to your thoughts on this. I’m not a developer, so I don’t know if this is one of those “eh, Lighthouse is being overly fussy,” or “yeah, this is serious” kinda things.

The page I need help with: [log in to see the link]