Those bots have been around for a long time, on multiple networks, preying on poorly moderated networks/channels and telling people to join all kinds of other networks/channels and sometimes also dropping names of seemingly unrelated people/groups. All of this was happening before Libera ever existed, but now with the schism they're telling folks to join Libera while mixing in some antisemitism and claiming to be an official message from the Libera staff. Previously they've slung shady sounding online pharmacies and claimed to be specific 'hackers' while linking to things like hackerguysucks.com. They're also spamming OFTC with the same lines.
One of the most prolific patterns of these bots seems to be
/!\ ATTN: This channel has moved to irc.something.else #something /!\
For what ever reason they also like to try and send people to #hamradio a lot of the time on what ever network they're slinging.