I have a problem in the Attributes Osclass Plugin in Delta Theme Arabic language, the default template works fine, but I have a  Delta template

What is problem?
You cannot expect someone will understand your images

When choosing something, the button is overlapping with writing

@leraat
Please send URL where problem can be seen, picture helps only to understand issue, but not to fix it.

https://www.zuclever.com/fahrzeuge/autos/autos-in-belgium-brussels-capital_i7

irregular format

https://www.zuclever.com/item/new
Here in Arabic the speech is intertwined with the square

In user.css (oc-content/plugins/attributes/css/user.css) find (all occurences ):
"FontAwesome"
replace with:
"FontAwesome","Font Awesome 5 Free"
then remove all occurences of:
font-weight:500;

It changed, but nothing happened
Can you do this for me?

I do not see anything like that would be done:
https://www.zuclever.com/oc-content/plugins/attributes/css/user.css?v=20220203092019

You can update from demo site (https://plugins2.abprofitrade.eu/oc-content/plugins/attributes/css/user.css?v=20220203092019)

Also to theme rtl.css is needed to add:
#plugin-hook #atr-item .atr-value-single {margin-left: 0; padding-left: 20px;margin-right: 0px; padding-right: 0px;}
#atr-form.atr-styled .atr-input-box label {padding:0 30px 0 0!important;float:right;}