I'll stick a specific example of how 2021 releases in my industry are continuing to be impacted, not because it's 100% relevant to games but because I think it's interesting.
I work in music. One of the artists that I work with was supposed to have an album released this month. January 2021. The original plan was for them to be in the studio (in another country) in May 2020. That obviously got canned, because they weren't able to travel (or be in a room with that many people, realistically) so we put the record back to a tentative Autumn 2021 with a plan to get into the studio whenever it was deemed safe and responsible to do so. Straight away that's a 8-9 month delay.
We finally managed to get in at the end of the Summer 2020 (by massively reducing the amount of people we'd have in the studio and rigorously making sure everyone had quarantined/been sensible) and got all of that done. We gave ourselves x months to get the rest of the recording finished from home studios/remotely and then get it mixed and mastered. In a typical year, when you send a record off to get pressed/manufactured, you'd give three months for that process. That's three months for the pressing plants to press the vinyl. It sounds like a lot (and it is!) but there aren't many plants and there are a lot of records queued up waiting for pressing every week of ever year.
Because COVID has affected the pressing plants (both through shutdowns/restrictions but also because of staff health problems directly related to the pandemic) we're now being told that we need to deliver the finished, mastered record seven months before we need them in hand to send out to our distributors. SEVEN MONTHS. That's now putting in jeopardy our Autumn 2021 release and maybe push the record back to early 2022. All the time during which the artist is unable to tour or play festivals to earn their living, which is where the vast majority of their income would typically come from.
This is madness. But, yeah, knock-on effects. And just highlighting that 'working from home' (or not being able to get into the office) is only a small part of a much larger issue for a lot of projects.
Basically, this is gonna be hindering the process differently for different projects but it'll continue to be hugely disruptive for a long time.