We're no longer under the Law given to the Jews.

(Romans 14:5-6 NIV) One man considers one day more sacred than another; another man considers every day alike. Each one should be fully convinced in his own mind. {6} He who regards one day as special, does so to the Lord. He who eats meat, eats to the Lord, for he gives thanks to God; and he who abstains, does so to the Lord and gives thanks to God.

(Exodus 35:2-3 NIV) For six days, work is to be done, but the seventh day shall be your holy day, a Sabbath of rest to the LORD. Whoever does any work on it must be put to death. {3} Do not light a fire in any of your dwellings on the Sabbath day."

You couldn't even make a fire on the Sabbath. Or cook. Or travel more than about 2/3 of a mile.

I think people who talk about following the Sabbath have no idea what that even means.