it is an interesting point though. Like I've tried to think of elegant solutions where we can get the customer's browser to preprocess work for us so we can reduce our total lambda/ec2 time. for example one could have their browser generate the thumbnails for an uploaded photo instead of just uploading the single image upload. After all, 1000s to millions of browsers can make short work of something that might be heavy on AWS.

Sadly I've yet to find many FE engineers that are all that experienced with WebWorkers

Someday this could be a good use of all those free CPUs