It definitely feels tougher to approach someone on Slack for help. You can't tell whether someone's busy or not when deciding if you should interrupt them. You can't read facial cues. The tone of texts can easily be misinterpreted. If they miss your message and reply a few hours later/don't reply, you can't help but wonder if they dislike you. Zoom has that 40 minute time limit which makes meetings feel rushed because it's a bother to restart so I feel that people are reluctant to use it if it's not urgent.
I think this paints a picture of a toxic work environment but it definitely is not. This is just a product of a company and myself trying to adapt to unprecedented circumstances and I'm sure it will improve in the future.