will it be possible to have lsw and lsa those stands for linux subsystem for windows and linux subsystem for android to have linux kernel support of having android apps and windows in a sub env
availing us to access application of windows and android with native system performance.
this may increase the kernel size but for a home system or a personal system i don't think the size of kernel will matter to most of the people.

if it is not possible then why? if some one can explain?

Windows has a linux subsystem now. Linux has a windows subsystem, if you install WINE. There are a couple of Android subsystems for Linux, but none of them are complete and fully functional for all systems: give it some time and that will change. personally, I do not see the value. I use native apps on all of my operating systems.

Yes, they are called simulators or emulators and as wpeckham says they currently exist in varying degrees of usefulness. However as a general rule in order for a simulator or emulator to reach native system performance it is usually necessary to have some additions to the hardware to speed up performance.

Waydroid runs android apps on gnu/linux at native speed, not emulated (unless you need arm apps on amd64, but thats an addon, not part of waydroid). But it requires using Wayland on Intel or AMD GPU if you want full GPU acceleration. (With VM or Nvidia, it requires software rendering so slow; with x11 must use nested wayland compositor.)

Wine runs windows apps too without emulation (Wine Is Not an Emulator).

You can also run a whole Virtual Machine of windows under linux. If your PC came with windows you probably have a sticker with an OEM code (or its built into your bios) so you can use that key to install clean copy of windows in a VM, even win7 key works for win10/win11. (The ISO is available to download direct from Microsoft).

None of these solutions are 100%, there's always edge cases where some app won't work right under wine or in VM or in waydroid, but most work fine.

Canonical saw a business case to work with M$oft to implement the original WSL. If they or someone else (RH ?) see a reason to invest time, people and money it cold arise. Note that WSL2 is a minimal vm environment.

Yes, it's always Business As Usual. If $$ is not on-sight then it will just be on the horizon waiting for the right time to bump on it.