The antenna seems always to be a compromise between practical matters and performance. While not being the most high performance antenna, I find the end fed half wave (EFHW) a very practical antenna, especially during portable operations.
The EFHW doesn’t need to be straight. It can be bent in angles and be “abused” a lot.
In this video I have a temporary installation in a vacation home (time share) where I am not able to erect any masts, not being able to use trees or other houses as fixation points for my antenna. I used some zip ties only that can be removed without leaving any marks.
The antenna height is far from optimal and the antenna is bent several times. It is also close to the rain gutters made of metal. Still I have fine SWR levels on all bands (10/15/20/40 m) and can work all of Europe on my QRP rig (6 watts) (see the screenshot from Reverse Beacon Network).