I have the same feeling. Last year I was eyeballing Threads (not the Meta one) and Campsite, it happened to both now. Another recent example is bench.
Building something to exit quickly might be a good model for founders but it is a bad model for customers and erodes trust.
tbh, I love those products, but it rises the question weather you should invest your time into exploring them or they will "wind down" in a couple of years, without any substitution 🤔