If you use the desktop version of Messages a lot, you'll like the new ability to View only Unknown Senders (spam, 2FA texts, etc) and then Command-A highlight all and delete them. Keeps things a lot tidier.
M1 2020 Mac mini (16G 2T) • Ventura 13.x • Dual 25" Acer 1440p LCDs • M1 2020 13" MBAir (256G 8G) •