Smartphone cameras have gotten a lot better over the years. You are still going to need a light in dark conditions to look better on video. The LumiCard can help. It is a wallet sized smartphone light that can be charged wirelessly. It attaches to magnetic phone cases and delivers 5w of power.
LumiCard can be used with Android smartphones and iPhone 15 (USB-C charging). A bunch of neat add-ons are also available for it. The LumiRing is a magnetic adapter that doubles as a kickstand. The LumiDiff serves as a diffuser for this light.