Of your six links, 3 are from a stationary bike test for 6-12 minutes. Two specifically say to take precaution during strenuous exercise and one I have no clue the point you were trying to make.
You're going to need to do more than google "mask while exercising" and pasting the first six links you see. What a train wreck of a post. You are an absolutely shambolic poster and really add zero value to this board. You position yourself as some kind of intellectual when the reality is your posts vividly display otherwise.
Do you not understand the difference between exercise and sport? Is that a tough concept to grasp? I am sure you don't have any issues when wearing a mask during your yoga session, but to compare exercise to sport is lunacy at best. You want to wear a mask in a volleyball match, fine. You want to wear one is a baseball game, fine. I doubt there would much issue with these sports that don't require the level of aerobic performance as say, soccer, basketball, cross country, etc.
Can you just stop with the disingenuousness you bring to this forum? I can't speak for everyone, but you have been a complete disaster for months and are a shockingly bad poster.