Once ESP8266 and ESP32 came along (with a detour thanks to Raspberry Pi coming along in the 2010s), there was really no need nor desire to use Arduino anymore and like you I forget about them.
Maybe they have a place in education, and maybe in industrial applications, but outside of that, I wouldn't even consider Arduino anymore.
PlatformIO by the way is excellent, and I've used it for all ESP8266/ESP32 development in VSCode for some time now, though increasingly I just use ESPHome, as my desire to program microcontrollers at a low level wanes and my desire to simply achieve the task quickly grows.