Something you didn’t ask about, but just wanting to make sure you understood your subscription options…
There is an offer you can get, where you can have the first two years of subscription for $240 instead of the usual $598. You could do that now, if you wanted continual support. If you want to take time to think about it, you can still get that amount of discount up until April 3rd 2021. Taking the offer does not stop your existing 2020 and 2021 installs from working, and you could use the subscription on additional machines, it wouldn’t have to be on the same ones that your Classic license is on.
If after two years you decided that the extras that come with the subscription version are not worth the regular $299 per year price, you could choose not to renew, and still be able to fall back on your 2021 license.
One fun fact, 2021 is intended to be future proof. Any files you make with 2022 or 2023 should still open in 2021. You can test that as you go along to be sure that it works.