This is a problem for us as well. During the pandemic, students here at Vassar who were home for lockdown and still wanted to contribute to the community that they were part of in Poughkeepsie created a community resource map using this functionality. The project, along with a screenshot of the now non-functional map and web app, is well documented on here the YouthMappers blog. But in short they worked remotely with local volunteers who populated information into a series of Google Sheets, which were published as CSVs and consumed live in the web map. This way, local volunteers who were not in the college's ArcGIS Online organization and with local knowledge as to what was open and available in the city could update the worksheets, while the students designed and maintained the map and app.
While the map is no longer in use or current, it was a great portfolio piece to which these still recently graduated students could point potential employers and collaborators as an example of their work. At least they have the above-linked YouthMappers blog post which documents their project.
Now, in 2024 there's another student working with a local organization on a mapping project where we had intended to set up a similar workflow with these same tools. We'll find another way, but it's such a bummer when Esri pushes an update that ends up removing some piece of functionality that organizations have come to rely on. Maybe that's just the nature of tech and the march of time, but it seems like Esri in particular has a long history of this, and it's exhausting.
