Arduino Giga which digital pins shouldn't be used - GIGA R1

I am working on a project that will utilize at least 69 digital pins (15 stepper motors, 15 proximity sensors and 24 solenoids). This is my first time using Giga board, previously worked only on UNO. So I know I should leave D0 and D1 out, as they are used for serial communication. However, I read on the the cheat sheet the following: Digital Pins The GIGA R1 features more pins than any other Arduino board for makers, a full 76 digital pins. Though many of them serve another purpose and shouldn

Arduino GIGA R1 Cheat Sheet

The Arduino GIGA R1 WiFi is designed for ambitious makers who want to step up their game. It levels the playing field for gamers, artists, sound designers and anyone coming to the tech world with big ideas on a budget – because it packs advanced features into an accessible component, with the same form factor as our popular Mega and Due. Let’s break down all the powerful features of this board.

Arduino Giga R1 WiFi ABX00063

Arduino Giga which digital pins shouldn't be used - GIGA R1 - Arduino Forum

Is there a M4 and M7 Usage for dummies document :D - GIGA R1 - Arduino Forum

Arduino Giga R1 WiFi - Technical Specifications

Arduino GIGA R1 WiFi — Arduino Official Store

GIGA R1 Wifi — Arduino Official Store

Makers, get ready to step up your game with the GIGA R1 WiFi

Compatibility of vibration module with Arduino GIGA R1 Wi-Fi board - GIGA R1 - Arduino Forum

Is there a M4 and M7 Usage for dummies document :D - GIGA R1 - Arduino Forum

Arduino GIGA R1 WiFi — Arduino Official Store

Can I connect a 2-H bridge to an Arduino? - Quora