Is there a cap on how many positions I can be matched with? How many positions should I mark as “Love” or “Like”?

There is no limit to the number of companies you select "Like" or "Love to work for." You should consider each role carefully and indicate as many positions as you are genuinely interested in.

There is a limited number of slots for each role, depending on the maximum capacity set by the company. Even if you selected "Love" for every position, you would not be matched for every role.