Evaluating this will give you a list of most (perhaps all) relevant variables, along with their descriptions, for your currently-loaded libraries:
(apropos-variable "\\(print\\|line\\)-\\(length\\|level\\)")
As additional variables might be added in future, I suggest keeping a commented copy of that form in your config so that if you run into a similar issue in future which isn't covered by the variables you already know about, you'll know what to check next.
The following shows some defaults from Emacs 30.1. Adjust them as you prefer:
;; Configure truncation of printed values. (setq print-length nil print-level nil eval-expression-print-length 12 eval-expression-print-level 4 edebug-print-length 50 edebug-print-level 50 ert-batch-print-length 10 ert-batch-print-level 5 )
(The one causing your current problem is eval-expression-print-length.)