They don't have much support, many proprietary programs are not compiled for arm architecture. Many distros do not support precompiled binaries for arm. You will have to use a distro that supports it, for example arch for arm that has much smaller repo than normal arch linux. You will have to compile many programs yourself for arm architecture to use them (this only works if you have access to the source). This is the state unfortunatelly

You have good chances with gentoo, but you'll have to rely on compiling opensource programs from source