What exercises are OK to do on smith machine?

The gym closest to my home is a national chain (purple everywhere). Have been going for 3 years and completely changed my physique. For squats, bench, and deadlift I have exclusively been using a smith machine since this chain doesn’t have barbells and free weights only go up to 75 lbs.

As I have become more advanced and involved in this sub, I’m seeing how everyone says smith machines are awful, cause injury and poor form. Since my options are limited, I’m wanting to know what exercises are OK to do with smith machine? For example I still really like doing seated overhead press and Bulgarian squats with the smith machine. Should I move away from it altogether? Thanks in advance. LOVE this sub