Following on from the massive 20.0.0 update that dropped for Nintendo Switch a few weeks ago, Nintendo has now followed it up with 20.1.0 which makes some slight alterations.
Whilst nothing too major, this update brings visual updates to parental control settings to presumably bring them into line with the Nintendo Switch 2, it also changes the sound of the Nintendo Switch Online app which also presumably matches the Nintendo Switch 2 and it also adds general stability improvements as well.
This is available now to download for all Nintendo Switch users.