@Douglas353 I have only gotten a "pre-approve" with a booking inquiry. I have then gotten a lot of prompt emails from ABB making it SEEM like accepting was hyper urgent. I have let some just fall off after asking questions (that the guest didn't answer), declined some, pre-approved some that the guests booked or didn't. In general when I see the word "inquiry" I think that its likely not a good fit because the guest is asking for permission to bypass some rule before booking, or they want a different day than is available but have sent the inquiry to ask if I really truly am booked.
If I see the word "request" I know I have to be more on top of things because I have 24 hours to accept or decline and it will ding me if I don't. These are typically guests who are new to the platform or not recommended by other hosts (that's how I have my settings-- they can't just book. They have to talk to me first.)
The only time I see the word "trip" is either when I am traveling or when someone is actively staying with me. Its in the context of "trips in progress." So maybe they did change something? But I am unfamiliar with anything other than the above.