Yes. The cursor is a bit taller than what it was in ST3. You can always set it back to what it was in ST3 if it’s not to your liking.
ST3 3211 settings for cursor (in default state)
// Valid values are "smooth", "phase", "blink" and "solid".
"caret_style": "smooth",
// These settings control the size of the caret
"caret_extra_top": 2,
"caret_extra_bottom": 2,
"caret_extra_width": 1,
ST4 4113 settings for cursor (in default state)
// Valid values are "smooth", "phase", "blink" and "solid". Previous
// versions of Sublime Text used "smooth" by default.
"caret_style": "solid",
// These settings control the size of the caret
"caret_extra_top": 4,
"caret_extra_bottom": 4,
"caret_extra_width": 1,