There is a trade-off. Because PNGs keep all that beautiful data, the file sizes are often larger than JPEGs. This can slow down a website if you aren't careful.
Although Peperonity shut down its main services around 2018, many old links, PNG images, and user-generated wallpapers from the site are still cached on internet archives (Wayback Machine) or have been scraped by link farms. The word "Peperonity" in a 2024-2025 search query usually indicates: peperonitypngkoap best