Honestly, have been long tenured (comfortable) at my current job for the whole of pandemic so only have second hand experiences through my direct reports. But on the whole I think remote work has made this problem kind of worse. When I was new I could walk over to someone, gauge their mood or how busy they are and have a direct conversation. Even if I lacked the ability to communicate my problem clearly it was definitely easier to get help. They could just see where i was stuck and get full context. Here for every simple thing people have to ping one on one on DMs or in group channels. There are few problems with this. One in large channels a person who asks a lot of questions is looked down upon. (Shouldn't be in an ideal world and we keep emphasizing this with processes and what not but it's human nature). Plus unlike an in person conversation every question you ask becomes a part of permanent/semi permanent record which discourages people from asking questions. Also you don't know when you are interrupting people. Even if you dont expect an answer right away when the person doesn't respond for a long time you naturally feel resentful. And repeating my earlier point it's much easier to provide full context when somebody has your undivided attention by showing them instead of typing out what you think the problem is.
The flip side of this is true as well. Ageism is a real problem in our industry. People are just more patient with young college grads and more willing to help them out. As somebody who transitioned to SWE in a big company(FAANG) after a decade of wireless communications research, I found out despite all the processes and supposed practices a big company has in place to onboard people from different backgrounds, you need to rely a lot on your teammates for the tribal knowledge to get anything significant done. And people are far less helpful than they think they are. Often they assume things because in their minds X years of experience means you should already know this stuff. Almost all of it is non technical and specific to the company so you won’t have a way of knowing it beforehand but that consideration is readily given to a fresh grad than an experienced person. Also a lot of the times tenured people will feel insecure/threatened about/by someone else joining at the same level and would constantly point out their shortcomings in order to maintain their place in the hierarchy. Was oblivious to this until I was managing people and saw newer experienced people joining the team face this. Had to coach people to stop them doing this unconsciously.