The capacity factor for nuclear power in Sweden (including losses from curtailment) was 83% of installed capacity during 2022, which exceeds the global average for that year (80%), by comparison wind had a capacity factor of 26% for the year. Hence, the issue is not reliability, but rather a lack of capacity. 1700MW (20%) of nuclear has been decommissioned since 2018 (which is why those stats are entirely irrelevant to the current situation). Hence that a the unexpected outage of a single reactor (1160 MW or 17% of total capacity) could have such a large impact.
Even with that outage, nuclear power remained the energy source with the greatest capacity % during the 22/23 winter (80%), despite being lower during peak demand. “Kärnkraft” is nuclear power.
So, in summary, you are either clueless regarding our situation in Sweden (I sincerely hope that is the case) or actively spreading misinformation (which would be the more unfortunate option).