It's a glorified chat program. Why does it need a top-of-the-line computer from last year for ? My experience with Teams is that it uses by itself about double

It's a glorified chat program. Why does it need a top-of-the-line computer from last year for ? My experience with Teams is that it uses by itself about double the RAM the rest of the entire operating systems is using (and that includes a web browser and a office suite). They've recently used tricks to reduce the RAM usage, such as practically unloading the entire "tab" (in the Chromium sense) when the window is not focused, but this leads to out-of-date information in the window (such as presence status) whenever it is not focused.