They seriously need to add a tab rename feature. Right click and rename. I am using it for development (along WSL2) and have 4, 5 tabs opened most of the time - a server, webpack, some ssh stuff, another server, something else.

All tabs have the same generic title name. There is a github issue, but it does not look like they take this feature seriously:

https://github.com/microsoft/terminal/issues/1079

Edit: I am happy with it - they've been improving it constantly (for the last 4 months at least).