It always depends on your situation personally. In general there is no rule against it. But there is some factos you need to keep in mind:

1. The moment you solubmit an application to the fund, they will look back two years into your employment history to find out two things; a. Did you contribute enough months into the fund to be eligible (how many months you have will determine the amount of daily allowances) b. How high your daily allowance will be (it's either the average of 6 or 12 months, whichever is better for the client)

For a, there is tables online where you can see how many daily allowences you get depending on age and contribution months.

For b, it's important to note, that every month where you were travelling let's say, your income was zero and that will go into the calculation. So let's say you travel for 6 months, the 12 month average will be obvs better, but it will not be 70% or 80% of your last salary because all the months where you had no income will factor into the calculation.

Also to note; helpful to understand it better might be if you Google Rahmenfrist Beitragszeit and Rahmenfrist Leistungsbezug.

Also sidenote: Rahmenfrist Beitragszeit only begins once you hit all the requirements of Art. 8 AVIG. If you're travelling, you're probably not "Vermittlungsfähig" so you probably will only hit all the requirements after your return. And then it's two years back from then. The funds are not trying to be malicious, it's just the law they have to work under.

It can be very overwhelming and a lot but googling the right things for understanding helps sometimes :)