I’m asking a a very straightforward question: What is the source of your quote? Either you have a source or you don’t.
What is the difference btwn "while the Lord is then physically present, this presence is not as that of the Biblical Christ in His incarnation," and
since once the substance or nature of the bread and wine has been changed into the body and blood of Christ, nothing remains of the bread and the wine except for the speciesbeneath which Christ is present whole and entire in His physical "reality," corporeally present, although not in the manner in which bodies are in a place. (Mysterium Fidei, Encyclical of Pope Paul VI, 1965; http://w2.vatican.va/content/paul-vi/en/encyclicals/documents/hf_p-vi_enc_03091965_mysterium.html)
In both cases - mine ("Catholic Eucharistic theology teaches that while the Lord is then physically present, this presence is not as that of the Biblical Christ in His incarnation) and the popes (Christ is present whole and entire in His physical "reality," corporeally present, although not in the manner in which bodies are in a place) - "physical" is clarified as not meaning "empirical," which was my point of contrast with the manifestly incarnated Christ of Scripture.
And you have other RCs affirming, ,
The Eucharist is Jesus Christ himself, truly present, and we, too, are called to respond like the Magi, to fall down prostrate and worship because Jesus is physically present no less so then he was at his birth. https://www.catholicnewsagency.com/resources/sacraments/eucharist/adoring-christ-in-the-eucharist
Eucharistic Adoration enables the faithful to encounter Jesus Christ as physically present in the Blessed Sacrament. - https://vol.org/holy-eucharist
here is also the basic difference between Catholic Christianity and say the Christianity that separated from the Catholic Church in the sixteenth century. As Catholics we believe that Jesus Christ is physically on earth. - John A. Hardon, S.J; http://www.therealpresence.org/archives/Sermons/Sermons_009.htm
Satisfied?
"Consequently, eating and drinking are to be understood of the actual partaking of Christ in person, hence literally. (Catholic Encyclopedia>The Real Presence of Christ in the Eucharist)