It gets worse than this.
Not only does most scientific instrument software become abandonware, but there are companies that sell instruments that use the exact same components as they did 20 years ago. The only difference is now they swapped the stainless steel parts for plastic and charge luxury car prices for what will be a piece of garbage in 3 years. These pieces have nothing to do with chemical compatibility and everything to do with increasing the frequency of maintenance that the older models never needed.
I 100% started doing this years ago and work is far less stressful. Temper their expectations, because it’s rare for any boss or company to treat you fairly and honestly.