Add more shapes such as semi circle, arc sectors etc.
The shape tool is amazing no doubt but it still lacks some major shapes. If you try to draw a semi circle by a quick stroke it converts it to a straight line, same goes for an arc. This is difficult while taking maths lectures as it requires a lot of shapes. Some shapes that don't work are: semi circle, arc, sector, parabola.

hankmertz commented
Slope Game https://slopeplay.io brings vivid 3D graphics and attractive sounds, making you unable to take your eyes off!

sahida23 commented
Sure, here are some additional shapes you may be interested in:
Semicircle: A semicircle is a half of a circle, and can be constructed by drawing a circle and then drawing a straight line through the center of the circle to create two equal halves.
Quartercircle: A quartercircle is a quarter of a circle, and can be constructed by drawing a circle and then drawing a straight line through the center of the circle to create four equal quarters, then choosing one of the quarters.
Arc: An arc is a portion of a circle's circumference. It can be created by drawing a circle and then selecting a portion of its circumference.
Sector: A sector is a portion of a circle enclosed by two radii and an arc. It can be created by drawing a circle and then selecting a central angle and the two radii that enclose it.
Ellipse: An ellipse is a closed curve that resembles a stretched circle. It can be constructed by drawing two points called foci, and then drawing a curve that connects all points such that the sum of the distances between each point and the foci is constant.
Parabola: A parabola is a Ushaped curve that is symmetric about its vertex. It can be created by graphing a quadratic equation in the form of y = ax^2 + bx + c.
Hyperbola: A hyperbola is a curve that resembles two mirrorimage parabolas that open away from each other. It can be constructed by drawing two points called foci, and then drawing a curve that connects all points such that the difference of the distances between each point and the foci is constant. https://www.c4yourself.ltd/

Ibrahim commented
Also line with two curve , arrow and cloud shape

Wang commented
Looking for the same tool. It could be useful if you can change the curve of a semicircle for example like Notability, especially for bridges’ designers for drafts

Emmerich commented
Thanks for the content you shared. I am looking for the same info.

Zaxonov commented
More control on the shapes and their control point would be great too.