I want to know the answer to the following question:
How many Buddhas are considered to have existed in the Pali Canon?
All the background I'm provided with is that "The Pali Canon refers to many previous ones (see List of the 28 Buddhas), while the Mahayana tradition additionally has many Buddhas of celestial, rather than historical, origin (see Amitabha or Vairocana as examples, for lists of many thousands Buddha names see Taishō Shinshū Daizōkyō numbers 439–448).". Is that enough to answer the question?
Answer: yes