Anyone noticed the quality of spam has improved?

No! Since I made a new email account with email aliases allowing me to give a unique address to every company I haven't received a single spam email (apart from advertising from said companies) in over a year.

I have however been getting spam WhatsApp and Telegram messages claiming to be from recruiters. These are quite obvious though as they lack any of the details recruiters usually include when they reach out on LinkedIn.

No for me! Usual mixture of "your email has won the lottery" and some variant of "I need to get money out of my country" or "I am a billionaire and feel the need to donate", etc, along with some slightly cleverer phishing attempts. These are the ones that get past my initial filters that drop several thousand SPAM attempts per day...