Why posts and terms are cached

I’m was trying to find the keys that are used so I can grab them in another backend through redis, I found these keys after activating your great plugin.

1) "g-wp:post_tag_relationships:146"
 2) "g-wp:posts:wp_query-aa16fad670a5ff8ad72056bc80070630-0.58287100 16708342620.57265300 1670834262"
 3) "g-wp:site-transient:update_core"
 4) "g-wp:site-transient:update_themes"
 5) "g-wp:post_tag_relationships:152"
 6) "g-wp:terms:6"
 7) "g-wp:options:notoptions"
 8) "g-wp:terms:3"
 9) "g-wp:post_format_relationships:1"
10) "g-wp:redis-cache:metrics"
11) "g-wp:posts:wp_query-c3a917d9566151fdfe5cf29c18b244d3-0.58287100 16708342620.57265300 1670834262"
12) "g-wp:category_relationships:152"
13) "g-wp:comment:get_comments-1b516a23ca8801fb482159bb8e30ecd2-0.90163500 1670834262"
14) "g-wp:comment:get_comments-46612f2dd3b604b784c3eb3dac699d60-0.90163500 1670834262"
15) "g-wp:posts:wp_query-e09d5f678ef68652fefeeed657e70487-0.58287100 1670834262"
16) "g-wp:useremail:[email protected]"
17) "g-wp:terms:get_terms-323b9d928932e9f61a4f7633925cbb88-0.57265300 1670834262"
18) "g-wp:posts:147"
19) "g-wp:options:user_count"
20) "g-wp:userslugs:steve"
21) "g-wp:users:1"
22) "g-wp:terms:2"
23) "g-wp:posts:3"
24) "g-wp:posts:146"
25) "g-wp:post_format_relationships:152"
26) "g-wp:options:alloptions"
27) "g-wp:site-options:1-notoptions"
28) "g-wp:posts:152"
29) "g-wp:comment:get_comments-e96df111ec1dc11a41982d65e4d21821-0.90163500 1670834262"
30) "g-wp:wp_theme_relationships:147"
31) "g-wp:comment:get_comments-bbafb40d4aed04b7b4890f46f3eeac25-0.90163500 1670834262"
32) "g-wp:category_relationships:146"
33) "g-wp:terms:5"
34) "g-wp:comment:get_comments-fbb001ab5aa3f7e15b8511e52af82c41-0.90163500 1670834262"
35) "g-wp:site-transient:update_plugins"
36) "g-wp:post_meta:3"
37) "g-wp:post_meta:1"
38) "g-wp:terms:1"
39) "g-wp:post_meta:147"
40) "g-wp:site-transient:theme_roots"
41) "g-wp:post_meta:146"
42) "g-wp:posts:last_changed"
43) "g-wp:terms:get_terms-ca9d506bdf62bafef81a1d4a61e0d283-0.57265300 1670834262"
44) "g-wp:user_meta:1"
45) "g-wp:options:can_compress_scripts"
46) "g-wp:post_meta:152"
47) "g-wp:posts:1"
48) "g-wp:terms:last_changed"
49) "g-wp:terms:get_terms-f990f9b3b1fb4d541b8d36add5ddfd35-0.57265300 1670834262"
50) "g-wp:comment:last_changed"
51) "g-wp:post_format_relationships:146"
52) "g-wp:post_tag_relationships:1"
53) "g-wp:userlogins:steve"
54) "g-wp:category_relationships:1"
55) "g-wp:default:is_blog_installed"

If I get the value of g-wp:posts:1 for instance I get:
"O:8:\"stdClass\":24:{s:2:\"ID\";i:1;s:11:\"post_author\";i:1;s:9:\"post_date\";s:19:\"2022-10-16 21:36:33\";s:13:\"post_date_gmt\";s:19:\"2022-10-16 21:36:33\";s:12:\"post_content\";s:139:\"<!-- wp:paragraph -->\n<p>Welcome to WordPress. This is your first post. Edit or delete it, then start writing!OK</p>\n<!-- /wp:paragraph -->\";s:10:\"post_title\";s:12:\"Hello world!\";s:12:\"post_excerpt\";s:0:\"\";s:11:\"post_status\";s:7:\"publish\";s:14:\"comment_status\";s:4:\"open\";s:11:\"ping_status\";s:4:\"open\";s:13:\"post_password\";s:0:\"\";s:9:\"post_name\";s:11:\"hello-world\";s:7:\"to_ping\";s:0:\"\";s:6:\"pinged\";s:0:\"\";s:13:\"post_modified\";s:19:\"2022-11-20 13:27:30\";s:17:\"post_modified_gmt\";s:19:\"2022-11-20 13:27:30\";s:21:\"post_content_filtered\";s:0:\"\";s:11:\"post_parent\";i:0;s:4:\"guid\";s:24:\"https://graphql.test/?p=1\";s:10:\"menu_order\";i:0;s:9:\"post_type\";s:4:\"post\";s:14:\"post_mime_type\";s:0:\"\";s:13:\"comment_count\";i:1;s:6:\"filter\";s:3:\"raw\";}"

Which is the real content of the post! That’s cool but wouldn’t that become too huge for a big website with a lot of posts and pages and custom posts?

I mean then redis would have to use a lot of memory and storage, is this really worth it? a database transaction seems to make more sense doesn’t it?