The economic incentives on the internet by and large favor the production of slop. A significant proportion of the text-based web was content-farmed even before LLMs - and with the advent of LLMs, you now have slop-results for almost every search query imaginable, including some incredibly niche topics. We've seen the same trend with video: even before gen AI, online video consumption devolved toward carefully-engineered, staged short-form bait (TikTok, YT Shorts, etc). In the same vein, the bulk of the world's email traffic is phishing and spam.
None of this removed the incentive to produce high-quality websites, authentic and in-depth videos, and so on. But in practice, it made such content rare and made it harder for high-quality products to thrive. So yeah, I'm pretty sure that good software will survive in the LLM era. But I'm also absolutely certain that most app stores will be overrun by slop, most games on Steam will be slop, etc.