How to get away with time trackers?

Hi, virtual assistant here! Asking for your help regarding time trackers and the best way to handle my current situation hehe.

I have three clients, full time lahat. Not too heavy naman ang workloads kaya kayang pagsabayin lahat. My main issue is that yung dalawang clients ay may time tracker (time doctor & workfolio).

I have one macbook & one monitor with its own PC. My initial plan is to do the two jobs sa PC (one without the tracker & one with time doctor) and the other one sa macbook (the one with workfolio).

Is there a way to block the screenshots taken by TD sa PC para di makita na nagwo-work ako ng isa pa? PLS HELPPP!