[x86-64] Update or fresh install from Legacy Generic to Generic?

I have this cheap LE Legacy Generic working system for some time now with old nvidia gpu on dell optiplex 780 core duo E8500.

I swapped gpu for AMD R7 240 4gb.

Now, should I update to generic or make clean install and import backup?

Update went through smoothly. Everything is working. Library is there, docker,....all container and addons...