I am new to spreadsheets!

I have created a google form to track a service technician’s daily time record. The technician might visit multiple sites in a day. As Forms does not allow looping questions, I have had to create a number of duplicate sections.
The Google Sheet attached to the form is here:
https://docs.google.com/spreadsheets/d/1zzivoIt2gfrb21mRpE2sbiZA37hc-sLUYgDT74qcf6Q/edit?usp=sharing

I am wondering if anyone can explain to me how to build a formula that will give me the “Daily Finish” time (“Processed Data” Sheet, Column “AS”) from the last recorded “FINISH” time in the row?

I have tried using XLOOKUP but that only gives me the data from either the first or last “Finish” column, not the last “Finish” column with data, ignoring blank cells