Why will you like it? Less resource needs. You can use it on your less-pricey embedded board or salvaged computer. Component-based design. Don't want something in LXDE, or you don't want to use LXDE but only part of it?
Lightweight and Low-resource can be considered the same, but in this case, there’s a difference. XFCE is a lightweight desktop environment even with a whole lot of built-in customizations and UI perks. LXDE, on the other hand, is a DE that is built to be as low-resource as possible. You certainly can add animations, but they need to be downloaded separately.
LXDE is a user-friendly, energy-efficient, and lightweight Linux desktop environment. It is based on the GTK+, so LXDE can be a good alternative to Xfce if it runs slower on your system. It proves that LXDE is supported for all distros. Therefore it can be supported on older machines too.
That said, you can look into lxinput https://wiki.archlinux.org/title/Openbox#GUI_configuration https://lxde.org or… I don’t know if kde-config-touchpad is still valid.
Source: about 2 years ago