When I first started working with push advertising, I thought that scaling was just a matter of increasing the budget and everything would work. But the results were quickly falling: CTR was going down steeply, there were almost no conversions. Luckily, I found article https://richads.com/blog/how-to-scale-push-ads-the-right-way/ , which explains how to understand when to scale correctly - look at ROI, do not rush to add budget, and test extensions only after stability. In the end, I realized: you first need to bring the campaign to stability, and only then really scale, and not just step on the gas.
I myself am losing interest in the project precisely because of the constant pushes and banners that interfere with the process. Trust in a brand is formed not only through the product, but also through respect for the user. Recently I came across https://www.pissedconsumer.com/for-business/consumers-choice-award.html , where companies that have earned customer recognition are noted. And this gave me an idea: if brands really want to retain their audience, they should strive to get there, and not irritate players with aggressive promotion.