Yep! Use the Text Character Count placeholder and feed the same text your element would render. Then add an Is Number loading requirement that checks that placeholder’s value.
Example (for a layout requirement that only shows if the text has ≥ 12 letters):
{"placeholder":"text_character_count","values":{"text":"Your text here or nested placeholders"}}
Put that into an Is Number requirement with Compare Mode = bigger-than-or-equals and Compare With = 12.
More details: Placeholders → Text Character Count