I had the same experience for years and I thought that it was the default behaviour. First with the original Pi power supply, then with the original power supply of a DeskPi Pro V2 case, then with another power supply that I bought of 5V / 4A / 20W that stated that was specially for almost all Raspberries models, this last one showed OK sometimes and other times errors, but there was a moment that was 98% showing low power.
Problems disappeared completely after I bought an Apple USB‑C 30W, right now is constantly OK without any errors and it has been in that way for months. ![]()
