Most big FOSS projects have a dedicated matrix room at this point, so if you are invested in one you could check that out. But in reality i have barely used public rooms despite using matrix for many years now. I just use it to replace all other messengers i used before. It used to be quite janky but its been getting and will continue to get more and more stable and reliable.
To answer your question, there is this https://matrixrooms.info/ which is often recommended by the matrix devs. Its a basically a search engine for public matrix rooms.
In terms of clients, while there are cool 3rd party clients, they lag behind so much that they dont give you a good picture of the current feature set. Only element-desktop and ElementX Android / iOS support the current audio/video call system.
Most big FOSS projects have a dedicated matrix room at this point, so if you are invested in one you could check that out. But in reality i have barely used public rooms despite using matrix for many years now. I just use it to replace all other messengers i used before. It used to be quite janky but its been getting and will continue to get more and more stable and reliable.
To answer your question, there is this https://matrixrooms.info/ which is often recommended by the matrix devs. Its a basically a search engine for public matrix rooms.
In terms of clients, while there are cool 3rd party clients, they lag behind so much that they dont give you a good picture of the current feature set. Only element-desktop and ElementX Android / iOS support the current audio/video call system.
Also see this server list, because the big one (
matrix.org) is not recommended https://servers.joinmatrix.org/Thank you