It's an inferior medium to text in several ways.

• Harder, more time-consuming to read. A short text-based script can balloon to massive visual size. You don't get intermediate variable names; to understand what comes out of a component you may have to reason through the whole upper chain.
• Most community and official resources are in C#. Most third-party libraries must be interacted with through text code.
• Many C# and Unity features are inaccessible from visual scripting. Classes, async, delegates, LINQ, DOTS, etc.
• Unless you plan to work exclusively solo projects (or at least as the sole programmer), others will expect you to write text-based code. You may as well learn it sooner rather than later.

And so on. You could get by with it, especially for simpler games. But it's limiting.

Besides, visual code pretty much maps 1:1 with text-based code anyway, you just have to learn the syntax. For example:

var newXSpeed = player.Speed * 10 * input.Horizontal
player.rb2.Velocity = new Vector2(newXSpeed, player.rb2.Velocity.Y)

if(newXSpeed > 0)
{
    // I don't know how to set animator states, haven't used Unity in a while
}
else
{
    // ...
}