Generally, yes - but of course, it’s not that straight forward.
It really depends on what we’re going to be doing in the session, and then what type of training or work you are doing.
For example, if you are coming in for running related knee pain, then having a session on the knee, followed by a run, might be a good test to gauge how well the session translated into results with running.
A different scenario might be, that you are dealing with hip impingement, and after the session you are planning on doing heavy deadlifts. The problem we may have here is that the work we do with the hip may have you feeling different on one side compared to the other, leaving your deadlifts feeling “different” to normal, which may not be conducive to heavy lifting.
Another scenario might be that you’re going into meetings which require concentration, and you’re needing treatment on your jaw. Treatment in this area can often leave you feeling a bit tired and drowsy, especially if the intervention is intense. So sometimes it’s better to time these sessions so they are at the end of the day.
So, in a nutshell:
Tell you practitioner what you plan on doing after the session in case it changes what we do in the session
The decision to train or go back to work is TOTALLY contextual
If you’re not sure - ask.