Static stretching before lifting doesn’t necessarily decrease strength. It does put your body into a position it’s not familiar with while exercising and causes your body to have to relearn engrams it’s stored because your body is in a new position. For example, squatting requires many many small movements we don’t think about. We don’t think about them because our body has learned the movement as one movement rather than several small ones. Now your body realizes it’s out of position and your brain has to recalculate the movement from scratch making you seem weaker when in essence you aren’t.But yeah don’t stretch beforehand. You’re ****ing up your engrams