It was okay on my old T460 which only has 56% of its original capacities. Got about 1.5hrs with sys-* and personal/work VM running. For me it’s a tinkerer distro rather than privacy distro, because every time I use my laptop, I tend to find new problems haha. Oh also it sucks when connecting to public WiFi with captive portal.

Pihole is a good start, though I personally use my Pi 3B+ for printer server over WiFi since I have a dumb Epson printer.