how to append text of indefinite length after the progress bar?

[AleXoundOS]

Currently, I rely on renderProgressBar and perform the print manually. Now I decided to limit the refresh rate, but found no functionality for appending text to the progress bar when using newProgressBar/incProgress (what I successfully do in conjunction with renderProgressBar).
stylePostfix behaves differently as it shares the same continuous block of characters with the rest of progress bar. So it's not a single operation of append.
Am I missing something?