Visual difference when coloring cells of tabularx and tabularray tables

In my thesis, I create tables with tabularx and also with tabularray. Both packages are used along with the booktabs package.

I realized that when I color the rows of the tables it looks slightly different. For tabularray, the color reaches to the next cell, while there is a small gap for tabularx:

\documentclass{article} \usepackage[table]{xcolor} \usepackage{tabularray} \usepackage{tabularx} \usepackage{booktabs} \UseTblrLibrary{booktabs} \begin{document} \begin{tblr}{ colspec={Q[m,c,2cm] X[m,c] Q[m,c,3cm]}, row{even}={bg=gray}} \toprule a & b & c\\ \midrule a & b & c\\ a & b & c\\ a & b & c\\ \bottomrule \end{tblr} \vspace{2cm} \rowcolors{2}{}{gray} \begin{tabularx}{\textwidth}{c X c} \toprule a & b & c\\ \midrule a & b & c\\ a & b & c\\ a & b & c\\ \bottomrule \end{tabularx} \end{document} 

1. Is it possible to get the same look for the tabularray tables as for the tabularx tables?
2. Would you recommend using tabularray everywhere? I read that it is the recommended package now, but it would require some effort to change all the tables.