meta name title tag and title title tag elaborate and explain the difference between them

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<title>Page title</title>
<meta name="title" content="Page title">

If both are used which is most prioritised?

I observed some sites both meta tag title and <title></title> tags both are same,which is expected, please confirm?

If we didn't use <meta> tag title would I have any problem regarding SEO?

<head>
<title>Stackoverflow</title>
<meta name="description" content="free source">
<meta name="keywords" content="HTML,CSS,XML,JavaScript">    
</head>
Feb 27, 2022 in Others by Kichu
 • 19,040 points • 897 views