Hello, Resiliencengine!
Sorry for the delay, I missed your post…
I have solved the problem you have.
The way I did this is as follows:
1. I Edited the page with the Counters, using WP Bakery page builder backend editor
2. Then I Added the extra class name in the Counter column.
https://prnt.sc/ld08w5
3. In the Customizer, I applied the CSS code targeting the counter using the extra class name.(General->Additional CSS)
https://prnt.sc/ld0g3s
Let me know if you have any further questions.
Regards