I'm trying this on R for QGIS:

##Test=group
##BucleTest=name
##n_iteraciones=optional number 100


pb <- txtProgressBar(min = 0, max = n_iteraciones, style = 3)

for (i in 1:n_iteraciones) {

print("Doing whatever")
  Sys.sleep(0.2)
  setTxtProgressBar(pb, i)
}


close(pb)

It does work, I can set this progress bar in the console of the process but I'm looking for manipulate the native progress bar of QGIS.

Anyone knows about it? ChatGPT said it's not possible...