ESP32 C3 - Keeps giving this error

Yes, I did. Good that you asked.

I did a clean install and with the blink sketch to an Uno I get this:

FQBN: arduino:avr:uno
Using board 'uno' from platform in folder: /Users/h.dpalmboom/Library/Arduino15/packages/arduino/hardware/avr/1.8.6
Using core 'arduino' from platform in folder: /Users/h.dpalmboom/Library/Arduino15/packages/arduino/hardware/avr/1.8.6

Detecting libraries used...
/Users/h.dpalmboom/Library/Arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/avr-g++ -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -I/Users/h.dpalmboom/Library/Arduino15/packages/arduino/hardware/avr/1.8.6/cores/arduino -I/Users/h.dpalmboom/Library/Arduino15/packages/arduino/hardware/avr/1.8.6/variants/standard /Users/h.dpalmboom/Library/Caches/arduino/sketches/B82C949317EBA2B665E7E10C73978EF2/sketch/Blink.ino.cpp -o /dev/null
fork/exec /Users/h.dpalmboom/Library/Arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/avr-g++: bad CPU type in executable

Compilation error: fork/exec /Users/h.dpalmboom/Library/Arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/avr-g++: bad CPU type in executable

Sequoia 15.3