Well this is something that aapanel team have to give or should give priority, since there is a bit of behind work that would need to be done.
No official php support yet, try this: https://github.com/kjdev/php-ext-brotli
As you can see here all major providers offer their community alternative, this is from Plesk, since both cPanel and Pleask are now owned by same company, much of the works there done were community members, since these are needed modern modules for nginx.
Could ease the work of many users, save bandwith and surely improve overall web experience for all.
We would need a simillar approach from aapanel team, until then we can only hope the community will grow faster and someone will provide such scrips to automate deployment.
Guess only @aaPanel_Jose can forsee this in future and give more feedback.