"No tie", I can live with, but I don't wholly disagree with your fine rant.... get this: I went to a meeting at a large airport yesterday where a dormant terminal is being brought back to life, my colleagues (we're clients of the terminal) and I were in usual business dress (shirts, ties, dresses / jackets)... the Airport Terminal Manager greeted us in sweat pants and trainers! Because "she works from home mostly these days" apparently! It's probably time she got out of that habit, we've all worked from home in the last year, but if you're not at home then ditch the sweat pants please.
If you got bigger in 2020 that's understandable, but please buy some bigger trousers rather than meeting your business clients in your couch slouch wear.