I used to do stretches in my first year of training. Then I came to know static stretches can decrease force production aka strength. So I researched on dynamic stretches which took me to a Korean/jap/.. YouTube channel where a physiotherapist explains the best method is stretching under tension. Then I realised "stretching under tension" is actually performing an exercise with full ROM. Ever since that I avoid stretching. Doing both pushing/pressing and pulling/rowing movements in both upper and lower body with similar relativistic intensities and volume will serve you good. So in short no need for stretching UNLESS you want to explore new/more ranges of motion.