You have no idea what traditions he taught, because they aren’t in the Bible. He said so.
Furthermore, you condemn practices because they aren’t in the Bible, but that’s the point! You keep assuming what we disagree on while the Bible itself doesn’t even validate the claims you make.
From the passage in question we do.
1Finally, brethren, pray for us that the word of the Lord will spread rapidly and be glorified, just as it did also with you; 2and that we will be rescued from perverse and evil men; for not all have faith. 3But the Lord is faithful, and He will strengthen and protect you from the evil one. 4We have confidence in the Lord concerning you, that you are doing and will continue to do what we command. 5May the Lord direct your hearts into the love of God and into the steadfastness of Christ. 6Now we command you, brethren, in the name of our Lord Jesus Christ, that you keep away from every brother who leads an unruly life and not according to the tradition which you received from us. 7For you yourselves know how you ought to follow our example, because we did not act in an undisciplined manner among you, 8nor did we eat anyone’s bread without paying for it, but with labor and hardship we kept working night and day so that we would not be a burden to any of you; 9not because we do not have the right to this, but in order to offer ourselves as a model for you, so that you would follow our example. 10For even when we were with you, we used to give you this order: if anyone is not willing to work, then he is not to eat, either. 11For we hear that some among you are leading an undisciplined life, doing no work at all, but acting like busybodies. 12Now such persons we command and exhort in the Lord Jesus Christ to work in quiet fashion and eat their own bread. 13But as for you, brethren, do not grow weary of doing good. 2 Thess 3:1-13 NASB
Furthermore, you condemn practices because they aren’t in the Bible, but that’s the point! You keep assuming what we disagree on while the Bible itself doesn’t even validate the claims you make.
Rome claims the Apostles handed down consistent teaching.
As I've shown with just a couple of examples that is not the case.
Neither does the Catholic church.