Mac Pro M1

Hi all! I recently purchased my work device which was a Mac Pro M1(16gb 16in) for $100. How many years could I realistically use it? It was only $100 which was a steal so Im not bent out of shape if its not long for this world. Luckily, I was upgraded to a M5 Mac Pro for my new work machine but I don't believe I will be in my role long enouch to purchase that one when we do our equipment refreshes. The battery is at 83% but I mostly use it plugged in now a days. TIA!