Hi @wolfrose. You can upload filesystems to ESP32 boards using Arduino IDE 1.8.19 by installing the "Arduino ESP32 filesystem uploader" Tool:
Installation and usage instructions are available at the above link.
If you are using an Arduino Nano ESP32 board (as opposed to any other ESP32-based board), then the additional instructions I provided in post #15 above should be equally applicable to Arduino IDE 1.x.
The only exception is the "C. Upload Filesystem" section, since you will be using the Arduino IDE 1.x "Arduino ESP32 filesystem uploader" Tool instead of the Arduino IDE 2.x arduino-littlefs-upload extension, so simply follow the "Arduino ESP32 filesystem uploader" Tool's usage instructions when you get to that part of the instructions: