Cherry-pick several SSR/SSG fixes to 20.3.x #10206

Job	Run time
analyze	6s
build	4m 42s
lint	2m 42s
build-e2e-windows-subset	4m 57s
test	11m 22s
e2e-package-managers (ubuntu-latest, 22, pnpm, 0)	5m 42s
e2e-package-managers (ubuntu-latest, 22, yarn, 0)	7m 30s
e2e-package-managers (ubuntu-latest, 22, yarn, 1)	6m 14s
e2e-package-managers (ubuntu-latest, 22, pnpm, 1)	4m 48s
e2e-package-managers (ubuntu-latest, 22, pnpm, 2)	5m 37s
e2e (ubuntu-latest, 22, npm, 3)	8m 9s
e2e-package-managers (ubuntu-latest, 22, yarn, 2)	7m 13s
e2e (ubuntu-latest, 22, npm, 0)	10m 54s
e2e (ubuntu-latest, 22, npm, 5)	12m 25s
e2e (ubuntu-latest, 22, esbuild, 3)	8m 48s
e2e (ubuntu-latest, 22, npm, 4)	9m 52s
e2e (ubuntu-latest, 22, npm, 2)	9m 52s
e2e (ubuntu-latest, 22, esbuild, 1)	10m 12s
e2e-snapshots	-1s
e2e (ubuntu-latest, 22, esbuild, 2)	8m 24s
e2e (ubuntu-latest, 22, esbuild, 5)	7m 21s
e2e (ubuntu-latest, 22, esbuild, 4)	6m 21s
e2e (ubuntu-latest, 22, esbuild, 0)	8m 20s
e2e (ubuntu-latest, 22, npm, 1)	8m 27s
e2e-windows-subset	4m 53s
	2h 54m 50s

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