Mostly Germany, Belgium as well, possibly a few others.
France did shut down superphenix for completely ideological reasons tho.
Also stopped investing in nuclear but that was not really ideological (the nuclear buildup originated in something of a misprediction, and sadly the country didn’t really capitalise on it).
Belgium didn't phase out nuclear. They decided that someone in the future would handle the closure of the nuclear plants, and when the time came and no replacement plant had been built, we just kept the nuclear plants running.
Belgium legislated the phase out of nuclear in 2003 due 2025, opting to neither replace nor postpone closure of nor refurbish its at the time 7 reactors as their lifetimes ran out.
Then it had to postpone the closure of at least two reactors following the second invasion of Ukraine, and this year officially dropped the phaseout and opened the door for new builds (unlikely as they are).
It absolutely did, back in 2003. This was pushed back after the invasion of Ukraine then repealed but Doel 3 and Tihange 2 were shut down under the phaseout plan.
France did shut down superphenix for completely ideological reasons tho.
Also stopped investing in nuclear but that was not really ideological (the nuclear buildup originated in something of a misprediction, and sadly the country didn’t really capitalise on it).