The Pope is fully orthodox. He has taught no heresy. As for the first, omitting the Filioque is not the same thing as saying that the Filioque is wrong, after all, the original text adopted at Nicaea and Constantinople Councils did not have the Filioque. As for the others, I view them as scurrilous rumors, don't know if true or the full contexst, and even if they were true, errors of judgment or even sins do not justify disobedience to lawful authority in the Church.
He teaches Catholics and Muslims worship the same "god".
Neither, do they justify calling him "orthodox".