The Chibnall episodes sucked, but then Russell T. Davies came back as showrunner. If you haven't seen the first three episodes he did, with David Tennant returning as the Doctor, you're missing out!

I liked the regular season that followed too. It had good and bad episodes, just like the last time RTD was showrunner, but the good ones were very good.

(I haven't watched the most recent season yet, but that's less because I'm unexcited and more because I want to save it.)