UPDATE 03/06/21: The UvA has just sent out an email (both Dutch and English below) in which they state that all students, including international students will have to return to Amsterdam to study next semester, with the only exception being students that cannot come to the Netherlands because of travel restrictions the Netherlands have posed. In this email, they also mention the uncertainty of the situation and that all of this can change. This greatly ignores that there are other difficulties that international students face concerning to Amsterdam in the fall semester, many of which we have already mentioned (housing, financial, health, etc.). The UvA's statement that teaching methods may change also shows the uncertainty under which students would return to Amsterdam, uprooting their lives, although there is a chance they have to return to online teaching again. We understand the UvA is following the government's recommendations and do not ask them to not allow online teaching at all, but we ask them to allow the alternative of online studying. Because the Dutch government has decided to carry out the strategy of opening everything up, although cases are still declining slowly and the country is in the group of European countries with the 7th highest daily average of infections (source), this does not mean the UvA has to blindly follow.

ENGLISH EXCERPT FROM THE EMAIL, see the full email here
On campus
The UvA’s focus is on a return to on-campus education and being able to meet each other. That means that from September on, lectures will once again require you to be present in Amsterdam. The normal attendance requirements will be in effect. This also applies to foreign students. Only in special cases, e.g. for foreign students who are unable to attend due to international travel restrictions, may programmes explore additional solutions to enable students to receive education.

DUTCH EXCERPT FROM THE EMAIL, see the full email here
Op de campus 
Het uitgangspunt voor de UvA is terug naar onderwijs op de campus en elkaar ontmoeten. Dat betekent ook dat je vanaf september weer in Amsterdam moet zijn om colleges te kunnen volgen. De normale aanwezigheidsplicht zal gelden, ook voor buitenlandse studenten. Alleen in bijzondere gevallen zoals buitenlandse studenten die vanwege reisbeperkingen niet naar Amsterdam mogen komen, kunnen opleidingen zoeken naar extra mogelijkheden om hen toch onderwijs te laten volgen.