It's unfortunately somewhat common these days and personally I actively avoid any place which does this. At least it's only somewhat common rather than the standard so it's still possible. Couple of examples:
https://www.pacificcatch.com/menu/ "NorCal - A 3% surcharge (5% in San Francisco) will be added to all Guest checks to help offset the rising cost of wages and benefits. This is not gratuity."
https://sushiconfidential.com/wp-content/uploads/2024/07/sc_... "3.5% Living Wage Surcharge added to each bill which allows us to provide the service you have always enjoyed!"
https://www.pacificcatch.com/menu/ "NorCal - A 3% surcharge (5% in San Francisco) will be added to all Guest checks to help offset the rising cost of wages and benefits. This is not gratuity."