You've got to take Musk's forecasts with a massive grain (sack?) of salt. Pre-launch he was estimating making 250,000 Cybertrucks per year by 2025. So far, total sales over 3 years have actually been 60-70K.

I'd bet that in 5 years time Optimus total sales are in the 10's of thousands at best, with few to no large scale industrial users (other than self-use by Musk). Customers will be similar to what AgiBot and Unitree currently have - entertainment, hospitality, academic, small scale trials, plus a few Tesla fanboy sales that don't do anything actually productive.