Hi,
Please note that many of us business developers may not upgrade to Joomla 4 until end 2022, or never. The reason behind this is, Joomla has been flip-flopping their decision in the middle of nowhere and their documentation of recent have become very outdated and cryprtic. They flip to BS 4 then flopped to BS5. That shift is not simple. We have extensions that use BS4 and flipping to BS5 is not going to be easy.
In fact, our user group may decide to drop Joomla all together and move to generator tools like PHPRad, Pinegrow, build pure html, css, js sites etc which gives us the flexibility.
Will the bug-fix support for the olders releases of Joomshaper components will still be there until end 2022? Unless Joomshaper wants to lose maket share.