Hi Christopher,
Your are right that it won't involve Office apps when we try printing forms in browser.
I understand the issue happens when you try printing form responses for an individual via opening it in browser>Responses>View results>click the 3 dots>Print response, when the Print dialog
window opens, click OK to start printing the form.
Your form has 2 pages but only the first page is printed.
(If there is something I misunderstood, feel free to correct me.)
I have test in Firefox, Edge and IE, I can print the form normally with both 2 pages printed.(my test form has 2 pages)
If it's convenient and possible, you may try using a different network environment then print the form.
I would like to help you do troubleshooting for the issue and want to confirm following information. Thanks a lot for your time and effort.
1.Are you the owner/creator of the form? Or if the owner tries to print the form, does he/she have this issue?
2.Does this issue happen when you print a specific form or all forms?
If you create a test form, fill in the form and submit it, when the response is generated, try printing the form response and check the result.
3.Could you please share screenshots about "The first page shows in both print preview and print. A second blank page is always there."? These would help us have a better understanding of
the symptom.
4.How many questions does your form have?
Best regards,
Tina