Should i install a discontinued custom recovery ? And how to keep root after update on LineageOS!

Am using my redmi note 8 with lineageos built in custom recovery. And my device was rooted. Recently i installed a OTA update and i loose my root access. As i don't own a laptop (i used my friend laptop to flash custom rom and magisk) it's cery inconvenient to lose root on every OTA update.

I researched about it and find magisk don't root android in a deeper level but in a surface level, thats why an OTA update wipes root access.

So recently i was looking at custom recovery like orangefox and twrp fir fixing this issue. For my device orangefox dropped development and rwrp have updates only one a year and last one was yeras ago...

What should i do ? How can i really keep root on an OTA update without a PC or Second device with OTG cable ?

Is there any other root manager that don't allow to lose root after OTA updates ? And is this issue caused by updating the recovery along with the OTA update ? Just so confusing!

Or should i avoid rooting at all ?