networkmanager and legacy networks

To quote from the Debian NetworkManager WIKI:
"The point of NetworkManager is to make networking configuration and setup as painless and automatic as possible. If using DHCP, NetworkManager is intended to replace default routes, obtain IP addresses from a DHCP server and change nameservers whenever it sees fit. In effect, the goal of NetworkManager is to make networking Just Work."
In order to get the 3 laptops in my wireless network to "just work" I had to issue these commands on each laptop:
#apt-get install wicd
#systemctl stop NetworkManager.service
#systemctl disable NetworkManager.service
I've been using Debian since Sarge, upgrading as new versions are released, and apparently my system of network configuration no longer works with the default version of Stretch. I use static configurations, not DHCP, defined in /etc/network/interfaces. I also have a discrete /etc/resolv.conf file containing effective nameservers. None of this seems compatible with NetworkManager.
My intention with this post is to request that Buster and later can be made to work with networks like mine with no more than the previously listed 3 commands.
Thank you.
"The point of NetworkManager is to make networking configuration and setup as painless and automatic as possible. If using DHCP, NetworkManager is intended to replace default routes, obtain IP addresses from a DHCP server and change nameservers whenever it sees fit. In effect, the goal of NetworkManager is to make networking Just Work."
In order to get the 3 laptops in my wireless network to "just work" I had to issue these commands on each laptop:
#apt-get install wicd
#systemctl stop NetworkManager.service
#systemctl disable NetworkManager.service
I've been using Debian since Sarge, upgrading as new versions are released, and apparently my system of network configuration no longer works with the default version of Stretch. I use static configurations, not DHCP, defined in /etc/network/interfaces. I also have a discrete /etc/resolv.conf file containing effective nameservers. None of this seems compatible with NetworkManager.
My intention with this post is to request that Buster and later can be made to work with networks like mine with no more than the previously listed 3 commands.
Thank you.