I have entered Koahsiung airport ten times. Twice I have seen officers asking questions of everyone. They used a board with pictures on it. Once was asking about meat products, the other time about have you been in China. No verbal language was needed, and the officers were cheerful.

It is very unlikely that you will even have to say any word at all.

You could try asking the people next to you in the plane if they can help you with immigrations, they can have their passports checked at the same time as you, like families do.

If they would have any questions they will contact a translator for you if they don't have anyone working who can speak your language.

All this however applies to all airports everywhere.

I’m not sure if there will be, this will be hard to tell especially at different times and shifts.

In advance as long as you just provide them with any documents they can ask for (passport and any other documents) then you can just make it clear you don’t speak their language. If you present all the documents they may ask for you should be able to proceed with no issues.

If further questioning needs to be done then they will always have an available translator/interpreter even though you might have to wait.

There are several services that could reduce the language barrier:

E-gates

In this case if you are eligible applying for the e-gate service might be useful. You have a lower chance of having a big language barrier there. You must be a ROC citizen or holding residency in Taiwan with multiple entry permits to be eligible for this service.

Online arrival card

This website states that the following people must fill out an arrival card, if you’re not a citizen/resident of ROC (Taiwan). This can be filled out online here to reduce the language barrier.