Problem with vertical spacing in table

Objective

I want to create a simple n x 1 table with a thick colored border on the left side.

My approach

documentclass{article}
usepackage{amsmath}
usepackage{tabularx}
usepackage{array,booktabs,arydshln,xcolor,colortbl}
newcommandVRule[1][arrayrulewidth]{vrule width #1}


begin{document}
LARGE
begin{tabular}{!{color{blue!70}VRule[4pt]}m{4cm}}
{ABC}
{DEF}
{GHI}
{JKL}
{MNO}
{PQRS}
end{tabular}


end{document}

Result1:

Result2 (using NiceMatrix):

Problem

Since I am using latex because I like the correct and clean look, some minor things dont please me.

• The border shows "visual" separations of the rows. This is an effect of Large. I can get rid of this using nicematrix package. However this is just a workaround in my opinion. Moreover, the border is extended even more (see result2)
• The Cells are not centered vertically in their cells in my opinion.(See Image1) In my opinion, there is more space between table bottom to the lower cell content and the table top to the top of the upper cell content.

I already did some research but none of the solutions in the internet solved my problem. Using NiceTabular gets rid of problem #1, but the spacing problem still remains.

documentclass{article}
usepackage{array}
usepackage[table]{xcolor}
usepackage{nicematrix}

begin{document}
LARGE
arrayrulecolor{blue!70}
setlength{arrayrulewidth}{4pt}
begin{tabular}{| l<{vphantom{Q}}}
    ABC     
    DEF     
    GHI     
    JKL     
    MNO     
    PQRS    
end{tabular}
quad
begin{NiceTabular}{|l<{vphantom{Q}}}
    ABC     
    DEF     
    GHI     
    JKL     
    MNO     
    PQRS    
end{NiceTabular}
end{document}

documentclass{article}

usepackage[most]{tcolorbox}
newtcolorbox{mybox}{
    enhanced,
    hbox,
    boxrule=0pt,
    frame hidden,
    borderline west={4pt}{0pt}{blue!70},
    colback=white,
    sharp corners, 
    boxsep=0pt
    }

begin{document}

begin{mybox}
begin{tabular}{@{}l}
ABC
DEF
GHI
JKL
MNO
PQRS
end{tabular}
end{mybox}

end{document}