I usually have multiple tabs open on Chrome and Safari simultaneously and YouTube playing in the background. I make frequent use of iMessage and MS Word or Pages all at the same time. I occasionally use iMovie to edit.
I have 8GB on my MBA M1 and have not had any noticeable slowdowns or lag. I can probably count on one hand the number of times I've seen the spinning beachball over the past year.
One of the best features of the original M1 systems, was the phenomenally fast SSD. The performance of the included SSDs are fast enough to disguise the typical symptoms of disk swapping, making many users of the M1 systems, oblivious to their systems making heavy use of the swap file. On top of how macOS uses memory compression, the high-disk speed makes 8 GBs feel like more, which lead to a lot of people claiming M1 8GB = Intel 16 GB. You should take a look at your memory usage (not talking about pressure) and see how much RAM you are actually using when you have all of your stuff open (Chrome, Safari, YouTube, iMessage, MS Word or Pages) and see how much it adds up to. If you are well below 8 GBs, you are in a great place memory wise. macOS itself seems to like around 4 GBs to run smoothly, leaving 4 GBs to account for apps and video memory. This is really an issue on longevity as there is no way to upgrade this later, you are stuck with what you got.
The biggest conundrum for the new M2 MBA is the fact that Apple (at least for the initial batch) is using only a single package for the 256GB SSD in the M2 MBP, which seems to be effectively halving the performance. So when one of these new M2 MBPs needs to disk swap, it has half the available performance of the original system, causing it to feel slower If Apple did the same thing in the new MBA, we might see similar perceived performance issues.
Unless you need/want the new features of the redesigned MBA, the performance delta between the M1 and the M2 might not be worth the $200 difference. However, if you are going to use the new Media encoding engine built into the M2, then you absolutely need the M2. This performance difference will be well worth the additional $200. You could also argue that the available added GPU cores are worth the cost difference, but only you will know if that is true for you.
In all cases, you can mitigate the risk of having a slower SSD by either opting to upgrade the SSD to 512GBs, or at least 16 GBs of RAM (you can go to 24 GBs on the M2). Of course, this might all be moot, if Apple did not opt for single package SSDs in the MBA, time will tell