Google Ads is now displaying a new “Budget Change Alert + Forecast” feature within campaign budget settings.
This feature alerts advertisers to potential conversion value decreases when reducing their daily budget for campaigns, highlighting them as “limited by budget.”

The alert includes a forecast of projected weekly conversion value declines and suggests an increase in daily budget to achieve higher conversion goals. An alert icon appears beside the budget settings to emphasize the guidance.
This update was spotted by Thomas Eccel.